All categories

4 years ago

What's 28=4 times m m = what

Mathematics

2 answers:

sweet-ann [11.9K]4 years ago

8 0

7. 7 times 4 is 28. Divide 28 by 4 it will be 7.

Ratling [72]4 years ago

5 0

Answer:

28 = 4m

28/4 = m

7 = m

m = 7

Hope this helps

You might be interested in

Amy's grandmother gave her 3 identical chocolate chip cookies and 4 identical sugar cookies. In how many different orders can Am

Dmitrij [34]

Answer:

chocolate chip cookie first: 15 ways

chocolate chip cookie last: 15 ways

chocolate chip cookie first and last: 5 ways

Step-by-step explanation:

There is a total of 7 cookies.

Is she eats a chocolate cookie first, she will have 2 chocolate cookies and 4 sugar cookies (6 in total).

So, to find the number of different orders that Amy can eat the remaining cookies, we just need to calculate a combination of 6 choose 2 (that is, the number of ways we can put the 2 chocolate cookies among the 6 cookies) or a combination of 6 choose 4 (same thing, but for the sugar cookies):

C(6,2) = 6! / (2! * 4!) = 6 * 5 / 2 = 15 ways

Is she eats a chocolate cookie last, she will have 2 chocolate cookies and 4 sugar cookies (6 in total), so the problem is solved again with a combination of 6 choose 2:

C(6,2) = 15 ways

Is she eats a chocolate cookie first and last, she will have just 1 chocolate cookie left and 4 sugar cookies (5 in total), so the problem is solved with a combination of 5 choose 1 or a combination of 5 choose 4:

C(5,1) = 5! / (1! * 4!) = 5 ways

6 0

3 years ago

Math help pls thank u

ELEN [110]

(8) =b

explaintion is : 3 seven times is 21

6 0

3 years ago

Solve the following pair of simultaneous equation using elimination method.

sp2606 [1]

Answer:

x = 1 and y = −2

Step-by-step explanation:

Rewrite equations:

x + 2y = −3

3x − 2y = 7

Step 1: Solve x+2y=−3 for x:

x + 2y = −3

x + 2y + −2y = −3 + −2y (Add -2y to both sides)

x = −2y − 3

Step 2: Substitute −2y − 3 for x in 3x − 2y = 7:

3x − 2y = 7

3(−2y − 3) − 2y = 7

−8y − 9 = 7 (Simplify both sides of the equation)

−8y − 9 + 9 = 7 + 9 (Add 9 to both sides)

−8y = 16

−8y/−8 = 16/−8 (Divide both sides by -8)

y = −2

Step 3: Substitute −2 for y in x = −2y − 3:

x = −2y − 3

x = (−2)(−2) − 3

x = 1 (Simplify both sides of the equation)

3 0

3 years ago

Which value can be substituted for x to make this equation true? 14x+10=38

Varvara68 [4.7K]

Answer:

The answer is 2

Step-by-step explanation:

14 x 2 = 28

14(2) +10 = 38

38 = 38

4 0

3 years ago

Read 2 more answers

What are the x and y intercepts of 5x-4y=40

Debora [2.8K]

<span> 5x-4y=40

</span><span>x intercepts, y = 0
</span>5x =40
x = 8

y intercepts, x = 0
-4y =40
y = -10

answer
x intercepts (8,0)
y intercepts (0, -10)

3 0

4 years ago