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4 years ago

Can someone answer 9-18

Mathematics

2 answers:

jeka944 years ago

6 0

Photomath with give you the steps and will teach you how to do it

Dimas [21]4 years ago

3 0

Answer:

photomath is a great app! it shows you the process

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2(b+3c) equivalent expressions Options: 3(b+2c) (b+3c) +(b+3c) None of the above

Lana71 [14]

2(b + 3c) → We first need to simplify this.

Simplify.

2b + 6c

1st Option :

3(b + 2c)

Simplify.

3b + 6c

This is INCORRECT, as it is not equal to 2b + 6c.

2nd Option :

(b + 3c) + (b + 3c)

Simplify.

2b + 6c

This is CORRECT because 2b+6c = 2b+6c

(b + 3c) + (b + 3c) → Answer

~Hope I helped!~

5 0

3 years ago

The function h = -t 2 + 95 models the path of a ball thrown by a boy where h represents height, in feet, and t represents the ti

finlep [7]

On a building 95 feet from the ground

5 0

3 years ago

Read 2 more answers

While jumping rope, Sary jumped 24 times in 30 seconds, at this rate how many times will he jump in 75 seconds?

Zina [86]

Answer:

69? I know that this can't possibly be the answer, but I tried.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Sonny and logan where driving go carts around the track. Sony took 15 minutes to drive 1 lap, it took logan 9 minutes to drive a

tamaranim1 [39]

Answer:

45 minutes

Step-by-step explanation:

Let, after time $t$ minutes, they meet again at the same point.

In time $t$ minutes, let Sony completes x lap while Iogan completes y laps. Note that x and y must be the counting numbers.

As Sonny took 15 minutes to drive 1 lap, so,

$t=15x\cdots(i)$

While Iogan Sonny took 9 minutes to drive 1 lap, so,

$t=9y$

$\Rightarrow 15x=9y$ [from equation (i)]

$\Rightarrow \frac {x}{y}=\frac{9}{15}$

$\Rightarrow \frac {x}{y}=\frac{3}{5}$

As x,y must be counting number, so

(x,y)=(3,5),(6,10),...,(3n,5n) where n is a positive integer.

So, the minimum number of laps required are

x=3 and y=5 (when they meet for the first time)

Now, from equation (i),

The time required to meet them for the first time, t=15x3=45 minutes.

7 0

4 years ago

Use the language of algebra to translate the variable expression into a word phrase. g + (h - 3)

aliina [53]

Consider 3 girls are doing an embroidery work. Let g be the number of hours needed for the first girl to complete the work and h be the number of hours needed for the second girl to complete the work.

If the number of hours needed for the third girl is the sum of the hours needed to complete the work by the first girl and 3 hours less than the hours needed to complete the work by the second girl, write the expression for the total hours needed for the third girl to complete the work.

No. of hours needed for first girl = g

No. of hours needed for second girl = h

So, number of hours needed for third girl = g + (h - 3).

3 0

3 years ago