Answer:
x = -1
y = 3
Step-by-step explanation:
y + 2x = -1
y = 1/2x + 4
(1/2x + 4) + 2x = -1
1/2x + 2x + 4 = -1
2 1/2x + 4 = -1
2 1/2x = -1 - 4
2 1/2x = -5
x = -5 / 2 1/2
x = -2
y + 2x = -1
y + 2(-2) = -1
y - 4 = -1
y = -1 + 4
y = 3
Sam spins a wheel shown below. What is the probability that it lands on
a number less than 6?*
Answer:
No wheel shown
Step-by-step explanation:
Help
Don’t use for points or will take it back
Answer:
35
Step-by-step explanation:
180-145=35
The total of 3 angles is 180 degrees
Answer:
x=35°
Step-by-step explanation:
45°+100°+x=180°{sum of angle of triangle}
145+x=180
x=180-145
x=35°
hope it helps.
PLEASE ANSWER ASASP FOR BRAINLEST!!!!!!!!!!!!!!
$99.99, 19% discount
Answer:
$80.99
Step-by-step explanation:
Turn the percentage into a decimal.
19% -> 0.19
Multiply.
99.99 * 0.19 ≈ 19
Subtract.
99.99 - 19 = 80.99
Best of Luck!
There are 15 boys and 12 girls and Mrs. smiths class what is the ratio of girls to boys written as a fraction in simplest form?
Answer:
4/5
Step-by-step explanation:
The ratio of girls to boys is 12/15. Since, there are 12 girls to the 15 boys in the classroom.
Then, you would simplify 12/15.
The simplified form of 12/15 is 4/5
select all the relationships that demonstrate a positive association between variables. (3 answers!) Group of answer choices Number of people in a grocery check-out line and how long you have to wait to check out Length of time you have walked and distance you have traveled Pounds of cherries you buy and amount of money you spend on cherries Speed of a train and the amount of time it takes for the train to get to its destination Outside temperature and cost to heat a home
Answer:
The following demonstrate a positive association between the variables:
O. Pounds of cherries you buy and amount of money you spend on cherries
O. Number of people in a grocery check-out line and how long you have to wait to check out
O. Speed of a train and the amount of time it takes for the train to get to its destination
Step-by-step explanation:
A basketball coach kept stats for his team in free throw percentage and steals (among others). At the last game, Erin's free throw percentage was 79% and she had 4 steals. The team averaged 87% from the free throw line with a standard deviation of 12 and they averaged 7 steals with a standard deviation of 3. In which category did Erin do better compared with her team
Answer:
Due to the higher z-score, she did better in the free throw category.
Step-by-step explanation:
Z-score:
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question:
She did better in the category that she had the higher z-score:
Free-throws:
Her free throw percentage was 79%, which means that [tex]X = 79[/tex]
The team averaged 87% from the free throw line with a standard deviation of 12, which means that [tex]\mu = 87, \sigma = 12[/tex]. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{79 - 87}{12}[/tex]
[tex]Z = -0.67[/tex]
Steals:
She had 4 steals, which means that [tex]X = 4[/tex]
Averaged 7 steals with a standard deviation of 3, which means that [tex]\mu = 7, \sigma = 3[/tex]. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{4 - 7}{3}[/tex]
[tex]Z = -1[/tex]
Due to the higher z-score, she did better in the free throw category.
This drawing shows the plan for a ramp to be installed in front of a building. Using the dimensions given, find the length of the ramp.
A. (the square root of) 26 ft.
B. (the square root of) 27 ft.
C. 16ft
D. 35ft
Answer:
D
Step-by-step explanation:
I am not sure
Read the problem.
There are a total of 90 trees in Citrus Grove, and 36 of them are orange trees. What
percent of the trees grow oranges?
Answer:
32.4%
Step-by-step explanation:
[tex]\frac{90x36}{100}[/tex]=[tex]\frac{3240}{100}[/tex]=32.4%
Evaluate the expression for the given value of x.
0.2x + 5.1 for x = -3
HI there I would Love some help! Thanks!
Step-by-step explanation:
So,
This should be the format from left to right-
-2.76, -2.57, -2.5, -1.85, -1.58, 2.5, 2.85
at the local flea market, nike and reebok sneakers were being sold. all bike sneakers sold for $75.00 and reebok’s were being sold for $65.00. if 180 people bought sneakers for a total of $12,550, how many of each pair were sold?
Answer:
69.72
Step-by-step explanation:
Thats the answer if its not plz tell me
Alexis was making cupcakes for the town bake sale. She decorated 9
cupcakes in 30 minutes. If Alexis continued decorating cupcakes at
this rate, how many cupcakes would she decorate in 2 hours?
Johnny said that Alexis would be able to decorate 18 cupcakes in 2
hours. Is Johnny correct? If not, explain his mistake and identify the
correct solution.
Answer:
Incorrect
Step-by-step explanation:
because it takes 30 min to bake 9 which is half an hour, and if if you multiply 9 by 4 which 30 mins each it would be 36 cupcakes in 2 hours.
What is the percentage of 65% of 34?
Answer: 65% of 34 is 22.1
Step-by-step explanation: Formula: 65% of 34 = 0.65 x 34 = 22.1
1. Convert 65% to a decimal. 0.65%
2. Multiply 0.65 by 34.
0.65 x 34 = 22.1
Answer:
22.1
Step-by-step explanation:
multiply 0.65 by 34
simplify 0.65 by 34
equal 22.1
Question 3
1 pts
If a porcelain doll can be made in 2 1/2 hours, how many dolls can be made in 100 hours?
40
50
250
35
Answer:
40
Step-by-step explanation:
100/2.5=40
The diagram shows the dimensions of a new parking lot at Helen's Health Food store
Find the missing side of the triangle, leave answer in simplest radical form.
Answer:
x = [tex]\sqrt{15^{2}-13^{2}[/tex]Step-by-step explanation:
WILL MARK BRAINLYIST what are the values of X,Y, and z
Answer:
x=111, y=36, z=76
Step-by-step explanation:
i will give you brainliest if the answer is correct
Answer:
x = 3
Step-by-step explanation:
x = (sq rt 3)( sq rt 3) because the leg opposite the 30 degree angle (sq rt 3) times the set value of sq rt 3 = the leg adjacent to the 30 degree angle.
x = (sq rt 3)(sq rt 3)
x = 3
Please help me i’m sorry
Answer:
Is that 11/3 because of rise over run??? I'm not sure
PLEASE HELP!! 30 POINT!
What is the length of side s of the square shown below?
1450
6
s
90°
O A. 2
B. 6
O C. 16
Answer:
(E) 3(sq rt 2)
Step-by-step explanation:
the figure is a square so all four sides are equal and has 90 degree corners.
the diagonal has the value of 6 so:
6^2=s^2+s^2
36=2s^2
s^2=18 or sq rt 18 which would be 3(sq rt 2)
Rebecca is making halloween costumes. She pays $6.72 for 3 yards of fabric. What is the unit cost of the fabric?
Answer:
$2.24
Step-by-step explanation:
To find the unit cost, you divide 6.72 by 3, which is 2.24.
What is the value of 3 in the figure shown below?
E
с
20
3.6 3.6
118°
3.8 3.8
30
D
B
9514 1404 393
Answer:
32
Step-by-step explanation:
Angle E is congruent to angle C, so is the value required to make the sum of angles in triangle ABC be 180°.
∠E = 180° -118° -30° = 32°
The value of x is 32.
Anna bought 27 bananas. She used some for a recipe and had 17 left. Select all the
equations that represent this situation.
Answer:
Step-by-step explanation:
27-x=17
Answer:
um how can we help you when there's no equations...
Step-by-step explanation:
Emergency!!! Please I need help!!!!!!!
Ryan is a salesperson who sells computers at an electronics store. He makes a base pay amount each day and then is paid a commission for every computer sale he
makes. The equation P = 17.50x + 65 represents Ryan's total pay on a day on
which he sells x computers. What is the y-intercept of the equation and what is its
interpretation in the context of the problem?
What is the Y intercepts of the function?
Answer:
i cant really tell what the question is asking but:
Step-by-step explanation:
65 is the y intercept and i think it stands for the minimum pay that he recieves each day no matter how many computers he sells.
What is the size of a elephants trunk?
Answer: An elephant’s trunk is usually around 6 feet in length, but can be up to 7 feet long. The trunk alone can weigh as much as 140 kg and can hold 12 litres of water. How fast do elephants run? Elephants can run faster than you would expect, easily reaching speeds of 40 mph - a lot faster than us humans can run!
Step-by-step explanation:
According to exponent rules, when we multiply powers we______
the exponents.
Pick one-
divide
add
multiply
subtract
Answer:
Add
Step-by-step explanation:
Find the measure of the missing angle.
а
54°
Answer:
a = 36°
Step-by-step explanation:
a + 54° = 90°
a = 90° - 54°
a = 36°
9x-(3x-3)=21
Solve the equation. Select the correct choice below and if necessary, fill in the answer box to complete your choice. The solution set is (Simplify your answer. Type an integer or a fraction. Use a comma to separate answers as needed.) The solution is all real numbers. The solution is the empty set.
NEED HELP! MATH 256 SQUARED!15 PTS ONE BRAINLYIST
Answer:
bxhebgrbf brcjfrbv5nk
Step-by-step explanation: