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SVEN [57.7K]
2 years ago
5

Susan bought some potted plants. Petunias cost $7 per pot and begonias cost $8 per pot. She bought 22 potted plants and spent a

total of $163. How many petunias did Susan buy?
Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
4 0

Answer: she bought 13 petunias

Step-by-step explanation:

Let x represent the number of Petunias pot of flowers that she bought.

Let y represent the number of begonias pot of flowers that she bought.

She bought 22 potted plants. This means that

x + y = 22

Petunias cost $7 per pot and begonias cost $8 per pot. She spent a total of $163. This means that

7x + 8y = 163 - - - - - - - - - - - -1

Substituting x = 22 - y into equation 1, it becomes

7(22 - y) + 8y = 163

154 - 7y + 8y = 163

- 7y + 8y = 163 - 154

y = 9

x = 22 - y = 22 - 9

x = 13

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The perimeter of a rectangle is 500 feet. The ratio of the base and height is 3:2. What is the measure of the height ?
nika2105 [10]

Answer:

height=100feet

Step-by-step explanation:

perimeter of a rectangle=p=500 feet

p=2a+2b equation 1

a=height

b=base

we have: b/a=3/2

so a=(2*b)/3

in equation 1 we have:

500=2*((2*b)/3)+2*b

so we have

500=(4*b)/3 + 2*b

500=(4b+6b)/3

500=(10b)/3

500*3=10b

b=(500*3)/10

b=150 feet =base

so

a=(2*150)/3=100 feet = height

8 0
3 years ago
Plz plz plz plz plz plz hlep
suter [353]

Answer:

C. 18:30

Step-by-step explanation:

Divide the y values (games played) by the x values (games won) to find your ratio. The ratio across each of these pairs is 1.666667...

Using the ratio provided, 18:30, divide 30 by 18.

30/18 = 1.666667...

It's a match!

Therefore, the answer is C. 18:30

6 0
3 years ago
Kate has scored 10 free throws out of 18 tries. She would really like to bring her free throw average up to at least 80%. How ma
wlad13 [49]
(10+t)/(18+t)=8/10
8(18+t)=10(10+t)
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3 0
3 years ago
How to solve it? What is the result of this question
lesantik [10]
Remember the order of operations. 
Dividing fractions means multiplying a reciprocal. 
3÷1/3=3×3/1=9
9-9+1=1
1 is your answer. 
:)
3 0
2 years ago
Read 2 more answers
Angles X and Y are supplementary. Angle X is 3 times the measure of angle Y. What is the measure of angle X?
Andreas93 [3]

we know that

Supplementary angles are those angles whose sum is equal to 180 degrees

In this problem

x+y=180 --------> equation 1

x=3y --------> equation 2

Substitute the equation 2 in equation 1

[3y]+y=180

4y=180

y=45°

<u>Find the value of x</u>

x=3*45

x=135°

therefore

<u>the answer is </u>

The measure of angle x is 135°


4 0
3 years ago
Read 2 more answers
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