MATHEMATICS HIGH SCHOOL

Write an equation
Eight times the sum of m and 7 is 21

Answers

Answer 1

Answer:

Answer:

the equation would be 8(m+7)=21

Answer 2

Answer: 8 ( m + 7 ) = 2 1
your welcome ! <3

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Express 5×-4y=20 in the form a×+by+c=0and write the value of a,band c

Answers

Answer:

a = 5

b = -4

c = -20

Step-by-step explanation:

Here, we want to express the given equation in the following form;

So we can have this as;

5x-4y-20 = 0

That means we have;

a as 5

b as -4

and c as -20

PLLLLZZZZZ HELPP ASAP

Answers

Answer:

option first cause

-2(y-5)= 3y+10-5y

-2y+10=-2y+10

Step-by-step explanation:

A container holds 21 spoons and 27 forks. What is the ratio of spoons to the total number of utensils in the container? A.
7 to 9

B.
7 to 16

C.
9 to 7

D.
16 to 9

Answers

the answer is :
B.
7 to 16

What is -4 x 3 when 4 is negative??

Answers

-12

When multiplying a negative and a positive, the product is a negative.

Whenever you are confused, you can write the multiplication tic tac toe on the corner of your paper and it really helps! (it's in the photo below)

Just remember that the positives are put in a diagonal line.

Hope this helps!

Let me know if you need anything else :)

Answer:

-12

Step-by-step explanation:

-×-=+

so -×+=-

so -4×3=-12

Simultaneous Equations
2x+4y=22
2x+2y=15

Answers

Answer:

x = 4

y = $(7)/(2)$

Step-by-step explanation:

Ummmm

I'm not sure if this is corrrect but this is what I got

So first you solve 2x+4y=22 to find x

and you get x = $-2y+11$

Then you have to subtitute $-2y+11$ for $x$ in $2x+2y=15$

which you then get y= $(7)/(2)$

After you have to subttitute y= $(7)/(2)$ for y in x = $-2y+11$

which you get as x=4

Finally you get the answer as:

x = 4

y = $(7)/(2)$

Three married couples attend a football game. In how many ways can they be seated in six seats in a row if all the men are seated together and all the women are seated together?6!
20
120
72