3 years ago

Which algebraic expression represents “the sum of a number and 9”?

Mathematics

1 answer:

Kipish [7]3 years ago

4 0

Answer:

9+n or n+9

Step-by-step explanation:

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How do u do this question step by step

Nutka1998 [239]

Answer:

CRT = 18

TRV = 72

V = 18

see attachment

Step-by-step explanation:

CRT = 90 - C = 90 - 72 = 18

TRV = 90 - CRT = 90 - 18 = 72

V = 90 - C = 90 - 72 = 18

RTC =TUS = SXW

6 0

2 years ago

Last year, a car dealership sold 144 new cars and 108 used cars. Since then, the number of new cars sold is increasing by 8 cars

morpeh [17]

Answer: 4 years

Step-by-step explanation:

144 + 8(4) = 176

108 - 5(4) = 88

88 x 2 = 176

4 0

3 years ago

g A restaurant offers 7 entrees and 11 desserts. In how many ways can a person order a two-course meal?

Kitty [74]

Answer:

$2-course\ meal = 77\ ways$

Step-by-step explanation:

Given

$Entrees = 7$

$Desserts = 11$

Required

Determine the number of ways to get a two-course meal

This is solved as follows:

The entrees can be ordered in 7 ways

The desserts can be ordered in 11 ways;

$2-course\ meal = Entrees * Desserts$

Hence:

$2-course\ meal = 7 * 11$

$2-course\ meal = 77\ ways$

8 0

3 years ago

The length of a DNA nucleotide building block is about 1 nanometer, or 0.000000001 meters. Fill in the blank to write this numbe

Damm [24]

Answer: 0.1 I might be wrong tho

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Which line is parallel to 2x - y = -3 and goes through (5, 5)?

Sunny_sXe [5.5K]

Answer:

G. y=2x-5

Step-by-step explanation:

First, find the slope from 2x-y=-3

-y=-2x-3

y=2x+3, which means that the slope is 2

Since it is parallel, the given equation and the line we are finding has the same slope.

let y=mx+b, where m=2, y=5, x=5

5=2(5)+b

5=10+b

-5=b

Thus, y=2x-5

8 0

2 years ago

Read 2 more answers