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amid [387]
3 years ago
8

Explain how to make these couculations mentally a. 99x6 b. 99x15

Mathematics
2 answers:
Sergeeva-Olga [200]2 years ago
6 0

Answer:

a is 594 and b is 1485

Step-by-step explanation:

puteri [66]2 years ago
5 0

Answer:

a. 594 b. 1485

Step-by-step explanation:

do it step by step.

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Find measure of x! Please help if you know how to do this
Ainat [17]

Answer:

52°

Step-by-step explanation:

(I'm assuming lines JK and HI are parallel)

∠JKA and ∠HIA are corresponding so they are congruent.

Therefore, since ∠JKA is 62, so is ∠HIA. Then knowing the sum of interior angles of a triangle always must be 180, you can just do the math to get 52° as the remaining angle.

66° + 62° + ∠x = 180

∠x = 52°

7 0
2 years ago
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What is the perimeter of a square with sides that measure 2x + 3 units?
PtichkaEL [24]

Answer:

8x+12

Step-by-step explanation:

We know that squares have equal sides. To calculate perimeter, just add up all of the 4 sides.

2x+3+2x+3+2x=3+2x+3

Add like terms:

8x+12

You could also multiply by four:

4(2x+3)

Use distributive property:

8x+12

8 0
3 years ago
Math slope please jelpyasap
SSSSS [86.1K]

Answer:

2/2

Step-by-step explanation:

the slope is the distance between the two dots. So for the first dot to get to the second dot is up two, and right two

6 0
3 years ago
PLEASE HELP! REWARDING BRAINLIEST
TEA [102]
X+2y=2 …(1)
x-2y=-2…(2)

(1)-(2): (x+2y)-(x-2y)=2- (-2)
4y=4
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subs y=1 into(1)
x+2(1) =2
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so x =0 y=1
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7 0
3 years ago
Which decimal is equivalent to 8%
Nikitich [7]

Answer:

0.08

Step-by-step explanation:

Given : 8%

To find the decimal value of the percentage number

Remove the percentage symbol with 100 in the denominator

gives            

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Now taking the numerator to the decimal place equal to the number of zeros in the denominator or simply divide denominator with numerator.

Gives =   0.08

So, the decimal equivalent of the given value is  0.08

3 0
3 years ago
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