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2 years ago

Which of these strategies would eliminate a variable in the system of equations?

Mathematics

1 answer:

KATRIN_1 [288]2 years ago

6 0

Answer: A and B

Explanation: I’ll use A as an example. When you multiply the bottom equation by -3/2, the equation becomes: -9x+6y=-3. Then, proceed to add the equations. Look at X and Y in both equations: do the Y variables in both equations equal to 0 when added together? Yes, because -6y+6y=0! Therefore, you can eliminate y in these two equations.

Hope that’s helps シ

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Find the area of the trapezoid

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

Formula

$\frac{1}{2} \times h \times (sum \: of \: parallel \: sides(b1 + b2))$

Your scale is 2cm to 2units therefore the parameters are as follows

h=4

b1=9

b2=13

$\frac{1}{2} \times 4 \times (9 + 13)$

$\frac{1}{2} \times 4 \times 22$

$\frac{1}{2} \times 88$

$\frac{88}{2} \\ = 44$

6 0

2 years ago

Is 674,734 divisible by 4?

barxatty [35]

Answer:

nah

Step-by-step explanation:

4 0

1 year ago

Read 2 more answers

Help! Solve for x !! Use picture below

creativ13 [48]

Answer:

x=7

Step-by-step explanation:

since it is the same side length,

3x+6 = 10x-43

3x-10x = -43-6

-7x = -49

x=-49/-7=7

please mark brainliest

7 0

1 year ago

Please help me solve this

Andreas93 [3]

Answer:

$0.75 per lemon

Step-by-step explanation:

Express the ratio on the left as a decimal:

$3/(4 lemons) = $?/lemon

0.75 $/lemon = ? $/lemon

0.75 = ?

The unit rate is $0.75 per lemon.

7 0

2 years ago

Automobile license plates in Massachusetts usually consist of three digits followed by three letters. The first digit is never z

Serga [27]

Answer:

1,58,18,400

Step-by-step explanation:

1st digit can have the values 1-9 (9 distinct values)

2nd digit can have the values 0-9 (10 distinct values)

3rd digit can have the values 0-9 (10 distinct values)

1st letter can have the value A-Z (26 distinct values)

2nd letter can have the value A-Z (26 distinct values)

3rd letter can have the value A-Z (26 distinct values)

Total number of different plates possible = 9*10*10*26*26*26

=1,58,18,400

3 0

2 years ago