3 years ago

How do I make both these equations into a elimination equation? Look at the pic I’m very confused!

Mathematics

1 answer:

qwelly [4]3 years ago

6 0

Answer:

Step-by-step explanation:

c + a = 342 ..................... (1)

5c + 12a = 2550 ........... (2)

- 5 × (1) + (2)

7a = 840

a = 120

c = 342 - 120 = 222

You might be interested in

Fred got a score of 68 on the test. Enter a division sentence using negative numbers where the quotient represents the number of

Contact [7]

100 / 68 equals negative 32.

4 0

3 years ago

Read 2 more answers

If a variable has a distribution that is bell-shaped with mean 19 and standard deviation 7, then according to the Empirical R

melamori03 [73]

The empirical rule says that approximately 68% of a normal distribution falls within one standard deviation of the mean. In this case, this would include all values of the variable in the interval $(19-7,19+7)=(12,26)$ .

7 0

3 years ago

HELP ME PLEASE

Mashutka [201]

Answer:

$9 + \frac{n}{3} - 6 = 7$

Step-by-step explanation:

Given

$9 + \frac{n}{3} - 6$

Required

Evaluate when n = 12

Substitute 12 for n in $9 + \frac{n}{3} - 6$

$9 + \frac{n}{3} - 6 = 9 + \frac{12}{3} - 6$

Simplify the fraction

$9 + \frac{n}{3} - 6 = 9 + 4 - 6$

$9 + \frac{n}{3} - 6 = 7$

4 0

3 years ago

Y=x-3 determine the slope

Anettt [7]

It is the answer M: 1

7 0

4 years ago

A class counts the number of vehicles that pass by its school from 1 :00 to 2:00 pm there are 3 times as many cars as trucks

Pepsi [2]

Ok So From What You Said I Calculated This:

1:00-2:00

cars=c, trucks=t
answer=a

c x 3 = a
a÷3=t

4 0

3 years ago