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aliina [53]
3 years ago
7

A number increased by 6 is 13. What is the number?*

Mathematics
1 answer:
Oliga [24]3 years ago
4 0

Answer:

7

Step-by-step explanation:

Simply subtract 6 from 13.

13-6=7

Hope this helps! :)

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The scale of a map uses 10 cm for 30 km.<br> How many centimeters does it use for 9 km?<br> +
xxTIMURxx [149]

Answer:

3 km

Step-by-step explanation:

30 divided by 10 is 3.

9 divided by 3 is 3.

Therefore, your answer is 3.

8 0
3 years ago
Find x for the problem
oee [108]

Answer:

14.4

Step-by-step explanation:

sin x = 24/30

x = sin^-1 (24/30) = 53.13

sin 53.13 = x/18

x = sin 53.13 x 18 = 14.4

6 0
2 years ago
Consider the two expressions 4b(b+1) and (2b+7)(2b-8). Compare their values if b=-3, b=-2, and if b=10. Is it true that for an v
noname [10]

Answer:

If b=-3 then the first expression is equal to 24 and the second expression is equal to -14.

If b=-2 then the first expression is equal to 8 and the second expression is equal to -36.

If b=10 then the first expression is equal to 440 and the second expression is equal to 324.

Yes, it is true.

Step-by-step explanation:

b=-3:

4b(b+1)=4(-3)(-3+1)=-12(-2)=24

(2b+7)(2b-8)=(2(-3)+7)(2(-3)-8)=(-6+7)(-6-8)=1(-14)=-14

b=-2:

4b(b+1)=4(-2)(-2+1)=-8(-1)=8

(2b+7)(2b-8)=(2(-2)+7)(2(-2)-8)=(-4+7)(-4-8)=3(-12)=-36

b=10:

4b(b+1)=4(10)(10+1)=40(11)=440

(2b+7)(2b-8)=(2(10)+7)(2(10)-8)=(20+7)(20-8)=27(12)=324

8 0
3 years ago
Will mark brainliest
Ede4ka [16]

Answer:

350

Step-by-step explanation:

7 0
3 years ago
I need help! someone please answer asap!
kirza4 [7]
For your question the answer is C.

                                              Hope this helps:)
5 0
3 years ago
Read 2 more answers
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