In order to solve the following system of equations by subtraction, which of the following could you do before subtracting the equations so that one variable will be eliminated when you subtract them?
4x-2y=7
3x-3y=15

A. Multiply the top equation by-3 and the bottom equation by 2
B. Multiply the top equation by 1/3
C. Multiply the top equation by 15 and the bottom equation by 7
D. Multiply the top equation by 3 and the bottom equation by 4.​

Answer:

Yes I will help

Step-by-step explanation:

Answer:

I think your answer is B

Step-by-step explanation:

Answer:

boot

Step-by-step explanation:

Answer:

x= 2.4

Step-by-step explanation:

Answer:

2.4 or 12/5

Step-by-step explanation:

1.2/0.96=3/x

convert the decimal into a fraction---- 6/5 /0.96= 3/x

Simplify the complex fraction-----5/4 = 3/x

simplify the equation using cross-mulitpication----- 5 x = 12

divide both sides of the equation by 5--- x= 12/5

Check if the solution is in the defined range

Alternitive form:

x=2 2/5, x =2.4

Answer

second one

Step-by-step explanation:

Answer:

Step-by-step explanation:

P = 2(w + l)

A = lw

~~~~~~~~~~~~~

Part A:

2[(4x - 6) + 12] = 36

8x- 12 + 24 = 36

8x = 36 - 12

x = 3

Part B:

A = 6 × 12 = 72 inch.²

Answer:

30c + 6 i believe

Step-by-step explanation:

Answer:

5,12,13

Step-by-step explanation:

The sides are almost close for the distance and so 5 doenst go with 12 and 13, its too small. For dimensions while the other numbers are close to being related. Do you know what I mean?

Hope this helped a little tho!

Step-by-step explanation:

2. Amount of soil provided.

In order to give different pH values of the soil, the amount of soil can directly affect this independent variable.

Answer:

I think 3 is right . uihhhujh

Answer:

12.41m

Step-by-step explanation:

Well, if we divide by the hypotenuse of the Pythagorean Theorem due to the angle created between the divisions on the scale between the 8th and 7th degree law of the Mathematical Institution of Nigeria, Ghana and Ethiopia (MINGE), then we get the result of 12.41.

Answer:

4 miles in 1/3 houra

Step-by-step explanation:

Which speed is the fastest? Group of answer choices LaTeX:

The formula for speed =

Distance (miles) / Time (hours)

A) 4 miles in 1/3 hours

= 4 / 1/3

= 4 ÷ 1/3

= 4 × 3

= 12 miles per hour

B)1/3 miles in 4 hours

=1/3 miles/4 hours

= 1/3 ÷ 4 miles per hour

= 1/3 × 1/4 miles per hour

= 1/12 miles per hour

C) 1/2 miles in 3 hours

= 1/2 miles / 3 hours

= 1/2 ÷ 3

= 1/2 × 1/3

= 1/6 miles per hour

The fastest speed is A, 4 miles in 1/3 houra

Answer:

Number of month = 25 month

Step-by-step explanation:

Given:

Plan A $70 per month and $500 phone cost

Plan B $50 per month No phone

Assume;

Number of month = x

So,

50x + 500 = 70x

20x = 500

x = 25

Number of month = 25 month

Question might be incomplete or incorrect so we'd have to assume Mateo took apples

Answer:

5/189 apples

Step-by-step explanation:

If Carlos picks 6/384 apples then there must be 384 apples available to pick from. Amount of apples left after Carlos picks =384-6=378 apples

If Mateo picks 10 apples after Carlos then how much apples Mateo has taken would depend on the number of apples available, hence the fraction of apples Mateo has taken = 10/378

Reduce to lowest terms to get 5/189 apples

Answer: the answer is 1.6

Step-by-step explanation: 8 divided by 5 is 1.6

Step-by-step explanation:

the answer is equals to

-10/11

Answer:

-10/11

Step-by-step explanation:

Answer: I think 27/2

Explanation:

Let number = x:

√(2x - 11) = 4

Now to get x, we undo the square root by squaring both sides:

[√(2x - 11)]² = 4²

(2x - 11) = 16

2x = 27

x = 27 / 2

Hope this helps!

Answer:

hey your really cute thats all

Step-by-step explanation:

;) love you bubs see you someday, now

Answer and Step-by-step explanation:

We are asked to turn this fraction ([tex]\frac{9}{10}[/tex]) into an equivalent fraction, but with a denominator of 100.

[tex]\frac{9 <- Numerator}{10<-Denominator}[/tex]

All we have to do is multiply the numerator and denominator by 10, since 10 times 10 equals 100.

[tex]\frac{9}{10} * \frac{10}{10} = \frac{90}{100}[/tex]

The answer is:

[tex]\frac{90}{100}[/tex]

#teamtrees #WAP (Water And Plant)

Answer:

90/100

Step-by-step explanation:

9/10, when multiplied by 10/10, is 90/100.

Hope this helps!

xoxo,

cafeology

Answer:

14

Step-by-step explanation:

When you sqaure a number you multiply it by itself once so it would be (3x3) + 5. Rmemeber PEMDAS, so you multiply 3x3 first to get 9 and then you add 5 to get 14.

Step-by-step explanation:

Given information :

Mr. Gonzalez drove 30 miles in March. In January, she drove 1/5 as much as in March.

30 ÷ 5 = 6 miles in January

in JanuaryShe drove 2 times as many miles in February as she did in January. In January, she drove 30 miles.

6 x 2 = 12 miles in February

Answer:

well i dont either

Step-by-step explanation: i'm

weird

Answer:

m>-3

Step-by-step explanation:

6-9 = -3

m>-3

yea 2/1 and 4/2..........

Answer:

y=-1/3x+12

Step-by-step explanation:

The slope of a line that is perpendicular to another is the negative reciprocal of the first. The slope of the line is 3 so the negative reciprocal will be -1/3.

Using the point-slope formula we can solve for the  equation of a line with a slope of -1/3 and a point of (0,12).

The point slope formula is

y-y1=m(x-x1).

y-12=-1/3(x-0) -------------->Distribute: y-12=-1/3x ---------------> Isolate the y by moving the 12 to the other side. y=-1/3x+12  

Answer:

2 answers are true

Step-by-step explanation:

If no adult chaperones were needed, 30 students could go to the zoo. Is true

If 16 adults go to the zoo, then 6 students can go. Is also true