3 years ago

Pleaseee helpppp What is the sum of -3 and -12

Mathematics

1 answer:

faltersainse [42]3 years ago

7 0

Answer:

-15

Step-by-step explanation:

When adding together two negatives it works just as it would with positive numbers, just with the negative sign to properly negate it.

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3 years ago

write an expression for the calculation the difference of 35 and 7 divided by the difference of 9 and 2

Rudik [331]

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35-7/ 9-2

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Step-by-step explanation:

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3 years ago

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3 years ago

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If a toy truck is created in a 2:9 scale, and the wheel of the toy is 14cm wide, how wide is the actual wheel?

lesya [120]

Answer:63 cm

Step-by-step explanation:

Given

The scale of creation is 2:9

The width of the toy wheel is 14 cm

Suppose x is the actual width of the truck

$\therefore \dfrac{2}{9}=\dfrac{14}{x}\\\\\Rightarrow x=\dfrac{9}{2}\times 14=63\ cm$

Thus, the width of actual truck is 63 cm

8 0

3 years ago

If m<1=6x+50 and m<2=4x+40 find x

Pepsi [2]

$\text{Adjacent angles on a straight line sum up to 180} \textdegree$

$\text{Therefore }\measuredangle 1 + \measuredangle 2 = 180 \textdegree$

$\text {Since } \measuredangle 1 = 6x+50 \text { and } \measuredangle 2 = x+40$

$(6x+50) + (4x+40) = 180$

$6x+50 + 4x+40 = 180$

$10x+90 = 180$

$10x = 180 - 90$

$10x = 90$

$x = 9$

Answer: x = 9

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3 years ago