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oee [108]
3 years ago
11

3 Find y if the slope between ( – 7, y) and (1, 13) is 3/4​

Mathematics
1 answer:
mafiozo [28]3 years ago
3 0

Step-by-step explanation:

slope \:  =  \frac{y2  - y1}{x2 - x1}  =  \frac{3}{4}

point 1 ( -7,y)

point 2 (1,13)

\frac{13 - y1}{1 - ( - 7)}  =  \frac{3}{4}

\frac{13 - y1}{8}  =  \frac{3}{4}

13 - y2 =  \frac{8 \times 3}{4}  = 6

y2 = 13 - 6 = 7

y = 7

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lidiya [134]
Since Sylvanite only contains 28% gold by mass, then to obtain 81.0 grams of gold, x amounts of sylvanite must be mined. To determine x, we divide 81 grams by 28%. This equation is shown below:

0.28X = 81

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3 0
3 years ago
At a rate of 4.25% over 24 months. If he pays $51.00 in interest, what was the original amount of his loan?
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6 0
4 years ago
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dusya [7]

Answer:

setup below, you'll have to do the final calculation

Step-by-step explanation:

first perform the operation in parenthesis

2+39= 41

then do the multiplication 3 x 41

in general do calculations in this order

1. Parenthesis

2. Multiplication

3. Division

4. Addition

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working from left to right

6 0
3 years ago
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What is the area of the figure below? <br> Haaaaalp please
Thepotemich [5.8K]
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4 0
4 years ago
Read 2 more answers
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