(GRADE7MATH) Can somebody plz answer all the questions correctly and show ur answer..thanks!!
(Only if u done this before)
WILL MARK BRAINLIEST) :D
Answers
Answer:
7. 28
8. -40
9. 36
10. -18
11. -32
12. -49
13. -33
14. 30
Step-by-step explanation:
Multiply as normal. If the signs are different, the product is negative. If the signs are the same, the product is positive.
Answer:
7. 28
8. -40
9. 36
10. -18
11. -32
12. -49
13. -33
14. 30
Step-by-step explanation:
+ × + = +
+ × - = -
- × - = +
- × + = -
Related Questions
You are at a fruit stand to get some fresh produce. You notice that the person in front of you gets 5
apples and 4 pears for 10 dollars. You get 5 apples and 5 pears for 11 dollars. Write a system of
equations that could be used to find the price of an apple and the price of a pear.
Answers
Answer:
[tex]5A + 4P = 10[/tex]
[tex]5A + 5P = 11[/tex]
1 apple costs $1.2
1 pear costs $1
Step-by-step explanation:
Represent Apples with A and Pears with P
For the person in my front, the expression is:
[tex]5A + 4P = 10[/tex]
For me, the expression is
[tex]5A + 5P = 11[/tex]
Hence, the system of equation is:
[tex]5A + 4P = 10[/tex]
[tex]5A + 5P = 11[/tex]
Solving for the values of A and P.
Substract equation (2) from (1)
[tex]5A - 5A + 4P - 5P = 10 - 11[/tex]
[tex]-P = -1[/tex]
[tex]P = 1[/tex]
Hence, 1 pear costs $1
Substitute 1 for P in [tex]5A + 4P = 10[/tex]
[tex]5A + 4 * 1 = 10[/tex]
[tex]5A + 4 = 10[/tex]
[tex]5A = 10 - 4[/tex]
[tex]5A = 6[/tex]
[tex]A = \frac{6}{5}[/tex]
[tex]A = \$1.2[/tex]
Hence, 1 apple costs $1.2
You purchased a computer for your business for $800 using straight line depreciation, the amount of depreciation allowed for each year after the purchase is given by the function f(x)= 800-114.29X what type of function can you used to model the data?
Answers
Answer:
this is a linear function
Step-by-step explanation:
y = a + bx
in this case:
y = 800 - 114.29x
where:
y = accumulated depreciation
x = number of years
year accumulated
(x) depreciation (y)
0 0
1 114.29
2 228.58
3 342.87
4 457.16
5 571.45
6 685.74
7 800
helppp i’ll give brainliest
Answers
Answer:
6 x 10^-4 (B)
Step-by-step explanation:
It is the greater number.
The average cost per unit c(x) to produce x units of lumber is given byc * (x) = 400/(x + 25) if the cost per unit is \$1.00 how many units have been produced if necessary round your answer to the nearest whole unit. the answer is 375
Answers
Answer:
The number of units of lumber that have been produced is 375
Step-by-step explanation:
From the question,
The average cost per unit c(x) to produce x units of lumber is given by
c(x) = 400/(x + 25).
Now, to determine how many units have been produced (that is, x) if the cost per unit is $1.00 (that is, c(x) = $1.00), we will put in the value into the given equation to determine x.
c(x) = 400/(x + 25)
c(x) = $1.00
∴ 1.00 = 400/(x + 25)
Then,
(x + 25) × 1.00 = 400
x + 25 = 400
x = 400 - 25
x = 375
Hence, the number of units of lumber that have been produced is 375.
$59.99 DVD box set, 6.5% tax
Answers
Answer:
$63.89
Step-by-step explanation:
59.99 * 6.5% = 3.89935. we can round that to $3.90.
59.99 + 3.90 = $63.89 total
Answer:
$3.90
Step-by-step explanation:
6.5% of $59.99 is $3.90.
Feel free to give brainliest.
Have an outstanding day!
What is the point-slope form with the slope -6 and the line through (1,-4)?
Answers
Answer:
y-(-4)=-6(x-1)
its is either (x-1), or (x+1). Im not sure on the last part
Step-by-step explanation:
hope this helps :3
if it did pls mark brainliest
so you would get y-(-4) = -6(x - 1) (this is your point-slope form)
simplify to get y + 4 = -6x + 6
simplify more to get y = -6x + 2
then 6x + y =2 (this is your standard form)
Ignore the 1 and the 2. That’s just where you put your answer.
Answers
Answer:
4500000
40
Step-by-step explanation:
*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^
In the equation, we are told that d(t) = 300,000t, where t is the time in seconds and d(t) is the distance in kilometers.
1. In this part of the question, it asks for the distance after 15 seconds. To solve we plug 15 in for t.
d(t) = 300,000(15)
d(t) = 4500000 kilometers
2. In this part of the question, it is asking for time after going 12,000,000 kilometers (twelve million). To solve, we solve for t by dividing 300,000.
12,000,000 = 300,000(t)
40 = t
*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^
#teamtrees #WAP (Water And Plant)
Is 3 x 1/2 greater than 5?
Answers
When ever you are multiply a number by 1/2 you are halving the number. So in the us case 3 x 1/2 is 1.5.
And 1.5 is not greater than 5
So the answer is no
Can you please mark brainleist
HELP PLZZ BTW I NEED THE WORK so plz include it if you do I will mark you brainliest
Answers
Answer:
C
C
C
I hope this help
Un ascensor está en el segundo subsuelo, sube
seis pisos, luego baja cinco, vuelve a subir ocho
y finalmente baja trece. En qué piso se quedó
Answers
Answer:
You are going to be in the 1st floor/Vas a estar en el 1er piso!
Yo creo que
Step-by-step explanation:
Yousef typed a 36-word paragraph in 2/3 minute. What is his typing speed, in words per minute?
Answers
To do this, we divide 36 by 2 which gives us 18.
So if Yousef can type 18 words in 1/3 of a minute, we multiply 18 by 3 to work out how many words he types per minute.
18 x 3 = 54
Therefore Yousef types 54 words per minute.
Another method:
Another method to do this would be to take the 36 and divide it by 2/3 which would give us 54.
expand and simplify
2(x+7)+ 3(x+1)
Answers
Answer:
2(x+7)+3(x+1)
2x+14+3x+3
5x+17
Answer:
Step-by-step explanation
2(x+7)+ 3(x+1)
2x+14+3x+3
5x+17 is the answer
And I is throwing money at birthday party. She has $100 to spend. She buys a cake for $30, a giant balloon for $20, and 10 cups that each cost the same price. Create and solve any equation to determine the cost of each cup.
Answers
Answer:
$5 per cupStep-by-step explanation:
Step one:
given data
total amount = $100
cost of cake=$30
cost of balloon=$20
let the cost of 1 cup be x
so cost of ten cups = 10x
Step two:
The expression for the total amount is given as
100=30+20+10x
100=50+10
100-50=10x
50=10x
divide both sides by 10
x=50/10
x=$5
the cost of one cup is $5
the cost of ten cups is 5*10= $50
is 12x+6y=18 parallel or perpendicular to 9x-3y=4
Answers
Answer:
perpendicular
Step-by-step explanation:
solve the question, thank you
Answers
Answer:
A . m = 11/6
its going to be a
The domain for the equation y = 3x + 14 is listed below. Find the range for the given domain.
D:{-5,0,4}
R:
Answers
Answer:
R:{-1,14,26}
Step-by-step explanation:
The domain of a function is all the x-values of the function. The range of a function is all the y-values of the function. Therefore, we must plug in every x-value in the function to get our outputs to create our range:
Given: y=3x+14
When x=-5:
y=3(-5)+14
y=-15+14
y=-1 (this is the first point of the range)
When x=0:
y=3(0)+14
y=0+14
y=14 (this is the second point of the range)
When x=4:
y=3(4)+14
y=12+14
y=26 (this is the last point of the range)
Therefore, our range is R:{-1,14,26}
The range for the given domain {-5, 0, 4} in the equation y = 3x + 14 is
{ -1, 14, 26 }.
We have,
To find the range for the given domain of {-5, 0, 4} in the equation
y = 3x + 14, we substitute each value of the domain into the equation and determine the corresponding range values.
When x = -5:
y = 3(-5) + 14
y = -15 + 14
y = -1
When x = 0:
y = 3(0) + 14
y = 0 + 14
y = 14
When x = 4:
y = 3(4) + 14
y = 12 + 14
y = 26
Therefore,
The range for the given domain {-5, 0, 4} in the equation y = 3x + 14 is
{ -1, 14, 26 }.
Learn more about functions here:
https://brainly.com/question/28533782
#SPJ4
5(y + 2) = 6(y - 1)
Show work
Please and thank you
Answers
Answer:
5 ( y + 2) = 6 ( y - 1)
- distribute the number outside into the parenthesis by multiplying it with each value
5y + 10 = 6y - 6
- subtract like terms, in this case 5y and 6y
-y + 10 = -6
- isolate the variable ( y) by getting rid of 10 by subtracting it to both sides
-y = -16
-1y = -16
- isolate variable (y) by getting rid of the -1 next to it by dividing it to both sides
y = -16 / -1
y = 16
HELPPP
Solve for b 2 in A = h(b 1+b 2), if A = 16, h = 4, and b 1 = 3.
b 2 =
Answers
Answer:1
Step-by-step explanation: substitute all the corresponding terms so you get, 16=4(3+b2)
Then you multiply and get 16=12+4b2 then subtract 12 from both sides to get 4=4b2 and then divided both sides by 4 and you get 1=b2
Answer:1
Step-by-step explanation: A = h(b 1+b 2)
16=4(3+b2)
16/4=3+b2
4=3+b2
B2 =4-3=1
Find the zero of the function f(x) = 5x-3
Answers
A restaurant freezes a cherry and lime juice mixture to create slushes. Cherry juice costs $5 per quart, and lime juice costs $3 per quart. Each day, the restaurant spends a total of $36 on 8 quarts of juice. The restaurant manager organizes the information in the table below.
Answers
Answer:
Answer is at the bottom!
Step-by-step explanation:
Cherry juice=5+5+5+5+5+5=30
Lime juice =3+3=6
6 cherry slushes and 2 lime slushes were sold.
Hope this helps!!
Answer:
6 cherry slushes and 2 lime
Step-by-step explanation:
what is the least degree of a polynomial equation that has 3 (multiplicy of 4), -2, and 6i as roots
Answers
Answer:
-2
Step-by-step explanation:
Yolanda has a 1/6 -cup ladle that she uses to pour gravy over potatoes. She uses one full ladle for each serving of potatoes. Yolanda has 6 cups of gravy. How many servings of potatoes can she make?
Answers
Answer: For 6 cups of gravy, Yolanda will have 36 servings of potatoes
Step-by-step explanation:
Step 1
Since Yolanda has a 1/6-cup of ladle for one full serving
Then for every serving the 1/6- cup ladle is used and can be expressed as
1 serving =1/6-cup of ladle
Step 2--- Solving
Serving of potatoes for 1 cup is
1 serving =1/6 cup of ladle
?? servings=1 cup of ladle ( cross multiply)
= 1 x 6/1 = 6 servings
Therefore 6 cups of gravy = 6 servings x 6 = 36 servings of potatoes
What is the equation of the line with a slope of 2 through (–4, 6) in point-slope form?
Answers
Y-6=2(x+4)
Hope this helps✨❤️
Estimate the measure of
Answers
Answer:
148°
Step-by-step explanation:
it is very close to the 150 line and the option closest to 150 is 148
Hope this helps:)
What is 2.53 Times 57.62
Answers
Answer:
145.7786
simplified to 145.78
Step-by-step explanation:
Answer:
The answer is 145
Elvira used 4 cups of grape juice, 1 1/2 cups of cranberry juice, and 1/2 cup of pineapple juice to make punch. One liter
is approximately equal to 4.23 cups.
Which measurement is closest to the number of liters of punch Elvira made?
Answers
6 cups = 1.42 liters
Closest measurement is 1.42L
Do the organic prices vary directly with the conventional prices? If so, identify k. Does the total cost of organic apples vary directly with the number of pounds of organic apples purchased? If so, identify k.
THE RIGHT ANSWER IS (i just had to answer my own question so that other people can get it but just copy and paste this thanks :) )
no, this is not a direct variation
yes this is a direct variation with k=2.34
2
Answers
Answer:
1: No, this is not direct variation
2: Yes, this is direct variation with k= 2.34
Step-by-step explanation:
I’m Just Built Different
2x-3=x+1
Show the work on what x is
Answers
Answer:
x=4
Step-by-step explanation:
Let's solve your equation step-by-step.
2x−3=x+1
Step 1: Subtract x from both sides.
2x−3−x=x+1−x
x−3=1
Step 2: Add 3 to both sides.
x−3+3=1+3
x=4
Answer:
x=4
2x - 1x = x
x-3= 1
3+1 =4
so x=4
WILL GIVE BRAINIEST IF RIGHT
(AMC8, 1994) Each of the three large squares shown below is the same size. Segments that intersect the sides of the squares intersect at midpoints of the sides. How do the areas of the shaded regions compare?
A. The shaded areas in all three are equal.
B. Only the shaded areas I and II are equal.
C. Only the shaded areas of I and III are equal.
D. Only the shaded areas of II and III are equal.
E. The shaded areas of I, II and III are all different.
Answers
Answer:
i dont ill tell u when im ready
Step-by-step explanation:
simplify:
3х + 5y-x+ 2y
&
3g + 5h +4g - 2h
Answers
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[tex]3x + 5y - x + 2y = [/tex]
[tex]3x - x + 5y + 2y = [/tex]
[tex](3 - 1)x + (5 + 2)y = [/tex]
[tex]2x + 7y[/tex]
_________________________________
[tex]3g + 5h + 4g - 2h = [/tex]
[tex]3g + 4g + 5h - 2h = [/tex]
[tex](3 + 4)g + (5 - 2)h = [/tex]
[tex]7g + 3h[/tex]
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