Answer:
^algebra^
#1). a - b=4
a=4 + b .....(equation 1)
#2) a + b=12
(4 + b) + b= 12
4 + b + b=12
4 + 2b=12
2b= 12 - 4
2b =8
b= 8:2
b=4
subtituted b in equation 1
a= 4 + b
a= 4 + 4
a=8
so, the number is 8 and 4
A bakery sells 6 bagels for $3.99 and 4 muffins for $2.29. What is the total cost in dollars of 2 dozen bagels and 12 muffins? *
PLEASE ANSWER ASAP
Mary turns the water on for her bath at 8:00pm. The water runs at 8.2 liters per minute. After 3 minutes, Mary's little brother pulls the plug on the bathtub and the water drains out at 5 liters per minute. To the nearest minute, when will there be 80 liters in the bathtub
Brendan throws a rock into a pond. The bottom of the pond is -12.6 ft from the surface of the pond. Brendan is on a patio that is 2.7 ft above the pond. How many feet apart are Brendan and the rock? Record your answer on the grid. Then fill in the bubbles.
Answer:
The answer is -15.3
Step-by-step explanation:
all u had to do was subtract -12.6 from 2.7
WILL GIVE BRAINLIEST, Can somebody please help me with this question?
Answer:
d
Step-by-step explanation:
f(x)-g(x)=2x²+4x-6-[2x²+2x+8]=2x²+4x-6-2x²-2x-8=2x-14
1 and 1/5- 1/3=
please give the right answer
Answer:
87/100
Step-by-step explanation:
I need help with this
Answer:i think the anwser is b
Step-by-step explanation:
Spencer needs 2 gallons of paint to create a mural. He has 3/8 gallon of yellow and 1/4 gallon of blue paint. Drag amounts of paint Spencer can add to the paint he already has to make exactly 2 gallons of paint. HOW MANY 1/8 DO I PUT AND HOW MANY 1/4 DO I PUT?
Answer:
He currently has 5/8 of a gallon. He needs 11/8 more paint to finish his mural.
Add 11/8 gallons or 5/4 and 1/8 of a gallon.
Step-by-step explanation:
Answer:
1 of 1/8 and 5 of 1/4
Step-by-step explanation:
3/8 times 1/4 is 11/8 and 5 of 1/4 is 10/8 and plus 1/8 equals 11/8
I don't know these some one help?
Answer:
I hope that's help you.
m = -7
t = 2
n = 10
Elena and jade are 12 miles apart on a path when they star moving toward each other . Elena runs at a constant speed of 5 miles per hour , and jada wake at a constant speed of 3 miles per hour. how long does it take until Elena and jada meet?
Answer:
1.5 hrs
Step-by-step explanation:
The height above ground of a cannon is a function of the time since it was shot.
Question: When time equals 0, why is the height of the cannon ball not equal to 0? Describe the domain of this function. Describe the range.
At t = 0 the height is not zero because the cannonball is at the end of the barrell of the cannon.
If we define H as the maximum height and T as the time when the cannonball hits the ground, the domain and range are:
domain: [0, T]
range: [0, H]
When time equals 0, why is the height of the cannon ball not equal to 0?
The height is modeled by the graphed parabola.
The height equal to zero would mean that the cannonball is on the ground. Now, at t = 0 we assume that the cannonball is leaving the barrel of the cannon (which is at some given height above the ground). This is why at t = 0 the height of the cannonball is not equal to 0.
Now we also want to describe the domain and range of the graphed function. The domain is the set of the inputs of the function, we can see that it goes from t = 0, when the cannonball is shooted, to a given time T which is when the cannonball reaches the ground.
For the range (the set of the outputs) we can see that it will go from 0 (the ground) to the maximum value that we can see in the graph, a height H.
So, domain: [0, T]
range: [0, H]
If you want to learn more about parabolas:
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A population grew from 100,000 in 1990 to 124.000 in 2000. What was the percent of increase?
Answer:
24%
Step-by-step explanation:
In the triangle below, If Sin B =5/13, Find the Tan A
Answer: tgA=12/5
Step-by-step explanation:
[tex]\displaystyle\\0^0 < B < 90^0\\sin^2B+cos^2B=1\\sin^2B+cos^2B-sin^2B=1-sin^2B\\cos^2B=1-sin^2B\\cos^2B=1-(\frac{5}{13})^2\\\\cos^2B=1-\frac{5^2}{13^2} \\\\cos^2B=1-\frac{25}{169} \\\\cos^2B=\frac{1*169-25}{169} \\\\cos^2B=\frac{144}{169}\\\\\sqrt{cos^2B} =\sqrt{\frac{144}{169} } \\\\cosB=б\sqrt{\frac{12^2}{13^2} } \\\\cosB=б\sqrt{(\frac{12}{13})^2 } \\\\cosB=б\frac{12}{13} \\\\As,\ 0^0 < B < 90^0\\\\cosB=\frac{12}{13} \\\\[/tex]
[tex]\displaystyle\\tgB=\frac{sinB}{cosB}\\\\ tgB=\frac{\frac{5}{13} }{\frac{12}{13} } \\\\tgB=\frac{5}{12} \\\\tgA=tg(90^0-tgB)\\\\tgA=ctgB\\\\tgA=\frac{1}{tgB} \\\\tgA=\frac{1}{\frac{5}{12} }\\\\ tgA=\frac{12}{5}[/tex]
What angle would you use to represent 40 red cars out of 90 cars in total on a pie chart?
. 40 degree
. 4 degree
. 160 degree
90 degree
Answer:
4
Step-by-step explanation:
i just know I took the test and I choose 90 and got it wrong
How are √25 and √-25 different in the terms of a solution for both? *
Answer:
For [tex]\sqrt{25}[/tex] it will be plus or minus [tex]\sqrt{5}[/tex]
For [tex]\sqrt{-25}[/tex] it will be plus or minus [tex]\sqrt{5i}[/tex]
Step-by-step explanation:
Well for [tex]\sqrt{-25}[/tex] it will be 5i
Because i = -1
could you guys help me with all 3 pls
Answer:
1. -5×-5×-5=125
2. 35
3. 22
Step-by-step explanation:
I know the first two are right but unsure about last one.
The manager of an electronics store projects that the store should achieve more than $21,000 in revenue from TVs and DVD players every day in order to remain profitable. Its DVD players sell for $380, and TVs sell for $530.
Write an inequality in standard form that describes this situation. Use the given numbers and the following variables.
Answer:
380d + 530t > 21,000
Step-by-step explanation:
Each DVD costs $380, we can represent that as:
380d
Each TV costs $530, we can represent that as:
530t
We add these together to find the total profit:
380d + 530t
The manager predicts that whatever the total profit is, will be more than $21,000. So, we represent that as this:
380d + 530t > 21,000
And that is the final answer.
I hope this helps!!
- Kay :)
Match each function with the correct translation of the parent function f(x) = |x|.
f(x)= |x|-4
f(x) = |x+ 41
f(x) = |x| +4
f(x) = |x-41
vertical translation up 4 units
horizontal translation right 4 units
horizontal translation left 4 units
vertical translation down 4 units
The translation of the parent function f (x) = | x | depends upon whether x value has been changed of whether the y value has been changed.
We are given the parent function as:
f (x) = | x |
Now, we need to match the functions with their correct translations.
For the function f (x) = | x | - 4:
This can also be written as:
f (x) + 4 = | x |
So, the translation will be vertical translation up 4 units.
For the function f (x) = | x + 4 | :
The translation for this will be horizontal translation right 4 units as x will increase by 4 units.
For the function f (x) = | x | + 4:
This can also be written as:
f (x) - 4 = | x |
So, the translation will be vertical translation down 4 units.
For the function f (x) = | x - 4 | :
The translation for this will be The translation for this will be horizontal translation right 4 units as x will increase by 4 units as x will decrease by 4 units.
Therefore, we get that, the translation of the parent function depends upon whether x value has been changed of whether the y value has been changed.
Learn more about translation here:
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What is the answer to:
1/6(30x+18)≥13
Answer:
x ≥ 2
Step-by-step explanation:
1/6(30x+18) ≥ 13
Distribute the left side
5x + 3 ≥ 13
Subtract 3 from both sides
5x ≥ 10
Divide both sides by 5
x ≥ 2
the following data respresents the number of text message received in a day by 10 students. What was the mean number of text received? 43, 37, 35, 30, 41, 23,33,31,16,21
Which point represents the approximate location of 90 ? A) point A B) point B C) point C D) point D
Answer:
C
Step-by-step explanation:
I took the test
please help me I do not understand what to do
Answer:
3 7/12
Step-by-step explanation:
There are 12 inches in 1 feet. So 43 inches would be 43/12=3 7/12 feet.
Wendy stops running
A.Speed
B.Velocity
C.Acceleration
Answer:
i think is c tell me if im right
105 is divisible by what 2 5 10
Choose the equivalent expression
(8¹⁰)²
A. 8²⁰
B. 8¹²
C.8⁸
D. 8⁵
0.5 divided by 10 please help me
Answer:
0.05
Step-by-step explanation:
Mark and Gary had a basketball game Saturday. Mark had three times as many rebounds as Gary. If together they had 28 rebounds, how many rebounds did Mark have?
A. 14
B. 9
C. 21
D. 7
Please someone answer with an explanation!! I keep putting questions but get no answer and if I do, they just scam my points. If no explanation, please get ready to be reported, thank you :)
Rebounds did Mark have is x = 21
The Option C is correct.
Mark and Gary had a basketball game Saturday.
and, Mark had three times as many rebounds as Gary.
Together they had 28 rebounds.
To find the how many rebounds did Mark have?
Now, According to the question:
Based on the given conditions:
Let x be the rebounds mark
Mark had three times rebounds as Gary
then, formulate ;
x × (1 + 3)÷ 3 = 28
Solve the equation:
[x × (1 + 3)] / 3 = 28
(x × 4) / 3 = 28
x = 28 × [tex]\frac{3}{4}[/tex]
x = 21
Hence, Rebounds did Mark have is x = 21
The Option C is correct.
Learn more about Rebounds at:
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Complete the equation for the graph shown below
What is the value of k?
–36 = k – 6
Answer:
-30
Step-by-step explanation:
-36+6=k
-30=k
k= -30
Tina had $17. She bought candy that cost $0.78. Then, her mom gave her $6.76 three and a half times. How much money does she have now?
Answer:
$39.88
Step-by-step explanation:
She started with $17
spent $0.78 so
17-0.78 = $16.22
then she got $6.76 3.5 times so
6.76*3.5 = 23.66 and that's what her mom gave her
23.66 + 16.22 = 39.88
She now has a total of $39.88
the answer would be: 39.88
because
17-0.78=16.22
and
6.76*3.50=23.66
so
23.66+16.22=39.88
hope this helps
have a fantastic day/night
Sandy and Alex are married, with no dependents. They wish to file a joint tax return. Both of them work, but their combined salaries only put them at a slightly above-average income. They would also like to deduct interest paid on their student loans. Recommend an appropriate 1040 form for Sandy and Alex to fill out. a. 1040 b. 1040-EZ c. 1040-2 d. 1040-A
Answer:I'm pretty sure it would be C but that might be wrong
Step-by-step explanation: