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Damm [24]
3 years ago
11

3(-6(2 + 3) + 4) = -78

Mathematics
1 answer:
WARRIOR [948]3 years ago
3 0
3(-6(2+3)+4)=-78
do 2+3 first
3(-6(5)+4)=-78
then multiply -6 and 5
3(-30+4)=-78
then add
3(-26)=-78
then multiply
-78=-78
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Please someone help me with this!!!
makkiz [27]

Answer: a = 1, 1r = 3, 0.4n = 7

Step-by-step explanation:

r= 3, 0.4n = 7, a1 = 1 : a = 1, n = 35/2, r = 3

6 0
3 years ago
Write an expression that contains at least two terms and is in simplest form<br>​
sertanlavr [38]

Answer:

5(x2 + 3x) = 5(22 + 3

Step-by-step explanation:

Hope it is helpful....

8 0
3 years ago
The average of 4 numbers is 9. If one of the numbers is 7, What is the sun of the other 3 numbers?
zaharov [31]

Answer:

Step-by-step explanation:

Comment

If 4 numbers have an average of 9, then total of the 4 numbers is 4 * 9 = 36.

If one of the 4 numbers is  a 7, then

7 + x = 36 where x is the sum of the other 3 numbers.

7 + x = 36           Subtract 7 from both sides

7- 7 +x = 36 - 7

x = 29

Answer 29

5 0
2 years ago
one angle of a linear pair is 10 more than two thirds the other angle. find the measure if both angles
BigorU [14]

Answer:

One Angle = 110°

Other Angle = 70°

Step-by-step explanation:

A linear pair means that two angles are in a straight line (or, a straight angle).

A straight line is 180 degrees.

THey are supplementary.

We can say one angle is "a" and another one is "b".

<em>One angle is 10 MORE THAN 2/3rds of the other, we can write:</em>

<em>a=\frac{2}{3}b+10</em>

<em />

<em>Also, since they are supplementary (add up to 180), we can write:</em>

<em>a + b = 180</em>

<em />

We can now substitute 1st equation in this one and find b:

a+b=180\\(\frac{2}{3}b+10)+b=180\\\frac{2}{3}b+b=180-10\\\frac{5}{3}b=170\\b=\frac{170}{\frac{5}{3}}\\b=170*\frac{3}{5}\\b=110

Since a + b = 180, we can write:

a + 110 = 180

so,

a = 180 - 110

a = 70

Thus,

One Angle = 110°

Other Angle = 70°

8 0
3 years ago
If 1/4 of x is 1/5, what is x
mamaluj [8]

Answer:

4/5

Step-by-step explanation:

if 1/4 of x is 1/5 that means there is 4 sets of 1/5

so 4*1/5= 4/5

your answer is 4/5

3 0
3 years ago
Read 2 more answers
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