3 years ago

The number of chairs increased by 7 A.cx7 B.c+7 C.c/7 D.c-7

Mathematics

1 answer:

miss Akunina [59]3 years ago

7 0

B.c+7
hope that helps!

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Each of the six letters stands for a different number, 1 through 9. Using the three clues, can you deduce the number represented

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Answer:

A = 9

B = 2

C = 5

D = 1

E = 8

F = 7

Step-by-step explanation:

A 9 B 2 C 5 = 16

D 1 E 8 F 7 = 16

10 10 12

BxC (2x5) = 10

A+D (9+1) = 10

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HURRY Choose the compatible numbers that will give the best estimate for 641/59 <br> HURRRRRRRYYY

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Answer:

640/60

Step-by-step explanation:

Close number to 641 is 640

Close number to 59 is 60

Estimate for 641/59 ⇒ 640/60

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3 years ago

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vovikov84 [41]

Answer:

The fourth one I believe

Step-by-step explanation:

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3 years ago

Substitution would be the simplest method of solution for which system? 5/3 x = 6y and 2x -3y = 8 3x - 2y =18 and 4x + 5y =60 y

LekaFEV [45]

It would be easiest for the last one

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3 years ago

Which equations represent the line that is parallel to 3x − 4y = 7 and passes through the point (−4, −2)? Check all that apply.

DIA [1.3K]

Reta a:

$3x-4y=7 \\ -4y=-3x+7 \\ 4y=3x-7 \\ y= \frac{3}{4}x- \frac{7}{4}$

reta x:

$y=ax+b$

Retas paralelas possuem coeficientes angulares iguais ⇒ mₐ=mₓ

$y= \frac{3}{4}x+b$

(-4,-2)

$\frac{3}{4}.(-4)+b=-2 \\ -3+b=-2 \\ b=-2+3 \\ b=1$

∴ y=3/4x+1

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