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Amiraneli [1.4K]
1 year ago
13

Help me please this is for a math test. Thank you

Mathematics
1 answer:
zubka84 [21]1 year ago
7 0

Answer:

x + 3y = -12

Step-by-step explanation:

y = mx + b

m is the slope = rise / run:

rise = 1

run = 3

the line is downhill so its negative

m = - 1 / 3

b is the y intercept which is when the line cross over the y axis: - 4

y = - 1/3x - 4

multiply both sides by 3

3y = -1x - 12

add x to both sides

x + 3y = -12

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Maurinko [17]

Let

x-----> the purchase price of the house

we know that

1) Marika paid 80\% of the purchase price of the house with a loan

2) Marika paid the remaining \$49,400 of the purchase price with her savings

3) \$49,400 represent the 20\% of the purchase price

so

0.20x=49,400

Solve for x

Divide by 0.20 both sides

0.20x/0.20=49,400/0.20

x=247,000

therefore

<u>the answer is</u>

the purchase price of the house is \$247,000

3 0
3 years ago
The current student population of the Brentwood Student Center is 2,000. The enrollment at the center increases at a rate of 4%
swat32

Answer:

2249.728 so the answer would be 2250

Step-by-step explanation  

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5 0
3 years ago
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goldfiish [28.3K]

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Step-by-step explanation:

3 0
3 years ago
340 students went to the first school dance, the last school dance 306 students attended. What is the percent of change between
Fofino [41]

Answer:

10.59%

Step-by-step explanation:

percentage of change is given by

{(old number - new number)/old number} * 100

_________________________

given

no. of student  went to the first school dance = 340

no. of student  went to the last school dance = 306

Percentage of change between two dance

= ((no. of student  went to the first school dance - no. of student  went to the last school dance)/ no. of student  went to the fist school dance)*100

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4 0
3 years ago
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nasty-shy [4]

Answer:

jil got 18 chocolates

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let the ratio constants be x,

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=》x = 42 ÷ 7

=》x = 6

so, jil got 3x = (3 × 6) = 18 chocolates

katie got 4x = (4 × 6) = 24 chocolates

5 0
2 years ago
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