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4 years ago

Evaluate the expression when a=2 and b=20

Mathematics

2 answers:

vagabundo [1.1K]4 years ago

8 0

50(2) -2(20) +6 = ?
100 - 40 + 6 = ?
60 + 6 = ?
66

marusya05 [52]4 years ago

5 0

50a - 2b
50(2) - 2(20)+ 6
100-40+6
60+6
66

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Rewrite each expression more simply: 3y + 8y

ELEN [110]

Since they both have the same variable(y) you can add them together like a regular math problem. So:
3y+8y=11y
So your final answer would be 11y.

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3 years ago

Subtract and simplify. 12 3\8 − 9 1\8 =

Ber [7]

Answer:

$3\dfrac{1}{4} \ \ or \ \ 3,25$

Step-by-step explanation:

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2 years ago

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Over [174]

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3 years ago

Please answer this correctly

Mnenie [13.5K]

Answer: 30 grams

Step-by-step explanation:

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5 0

3 years ago

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What Is The Surface Area Of this triangular prism? The Base Of Each Triangle 42m And the height of the triangular base is 20m. (

ehidna [41]

Answer:

The surface area is $2,440\ m^{2}$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The surface area of a triangular prism is equal to

$SA=2B+PH$

where

B is the area of the triangular base

P is the perimeter of the triangular face

H is the height of the prism

<em>Find the area of the base B</em>

$B=\frac{1}{2}(42)(20)=420\ m^{2}$

<em>Find the perimeter of the base P</em>

$P=(42+29+29)=100\ m$

we have

$H=16\ m$

substitute the values

The surface area is

$SA=2(420)+100(16)=2,440\ m^{2}$

8 0

3 years ago