3 years ago

How do you solve substitution for 7x+8y=17y=10

Mathematics

2 answers:

Triss [41]3 years ago

7 0

Answer:

x=-9

Step-by-step explanation:

First, subsitute

7x+8(10)=17

7x+80=17 Subtract by 80 on both sides to isolate the variable

7x=-63 Divide by 7 on both sides

x=-9

jek_recluse [69]3 years ago

3 0

7x+80=17
Subtract 80 on each side
So x=-9

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Anna71 [15]

Answer:

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Step-by-step explanation:

Using synthetic division

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4 - 8 14 - 22

------------------------

- 7 11 - 20 ← f(- 2) = - 20

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3 years ago

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Temka [501]

Answer:

324,632 possible combinations

Step-by-step explanation:

We are looking for the amount of combinations of 5 students we can have in a class of 35 students. We write this as 35_C_5. The formula for finding the number of combinations of x objects from a set of y objects is x_C_y = $\frac{x!}{y!*(x - y)!}$ .

Then we have:

35_C_5 = $\frac{35!}{5!*(30!)}$

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324,632 --- simplify

324,632 possible combinations

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Step-by-step explanation:

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Answer:

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2 years ago

How do you solve substitution for 7x+8y=17y=10​

How do you solve substitution for 7x+8y=17y=10