Ask question

Ask question

All categories

3 years ago

10

Three years ago, sharon was (8+b) years old and nora was (2b-1) years old. Lupe will be 3b years old in 2 years. Write an expres

sion in simplest form for the present day sum of the three girls' ages?

1 answer:

Usimov [2.4K]3 years ago

5 0

Answer:

Three years ago

S = 8 + b

N = 2b - 1

In two years

L = 3b

Add 3 to the first 2 expressions and minus 2 from the second

11 + b + 2b + 2 + 3b - 2

11 + 2 - 2 + b + 2b + 3b

11 + 6b

You might be interested in

Create a ratio table for making lemonade with a lemon juice to water of ratio of 1:3 show how much lemon juice would be needed i

Ganezh [65]

There is 1 serving of lemon juice to 3 cups water. Hence why it's 1:3 ratio.

Since it's 1:3, then 2 servings to 6 cups of water, so on and so forth.

Multiply your lemon juice servings by 3 to find out how many cups of water for the table.

To find how much lemon juice for 36 cups of water, just divide 36 by 3 to get 12. 12 servings of lemon juice is just right for your 36 cups of water.

8 0

3 years ago

Read 2 more answers

Let f(x) = 8x3 − 28x + 61 and g(x) = 2x + 5. Find f of x over g of x.

antoniya [11.8K]

Answer:

$4x^2-10x+11+\frac{6}{2x+5}$

Step-by-step explanation:

The given functions are:

$f(x)=8x^3-28x+61$ and $g(x)=2x+5$

By algebraic properties of functions;

$\frac{f(x)}{g(x)}=\frac{8x^3-28x+61}{2x+5}$

We perform the long division of the two polynomials as shown in the attachment.

Therefore:

$\frac{8x^3-28x+61}{2x+5}=4x^2-10x+11+\frac{6}{2x+5}$

The last choice is correct

8 0

3 years ago

What are the input and output value for determining the sine of 60?

inna [77]

<h2>Explanation:</h2><h2 />

The input of a function is also called the domain and are those x-values for which the function is defined.

The output of a function is also called the range and are those y-values for which the function is defined.

Here we have the following function:

$y=f(x)=sin(x)$

And we know that:

Input:

$\boxed{x=60^{\circ}}$

Output:

$y=sin(60^{\circ}) \\ \\ \therefore \boxed{y=\frac{\sqrt{3}}{{2}}}$

7 0

3 years ago

Read 2 more answers

Can someone help and explain this question please thank you so much I appreciate

lakkis [162]

Answer:

$176.23

Step-by-step explanation:

(13x12)+(0.07x289)=

156+20.23=

$176.23

6 0

3 years ago

There are 1 chef, 7 assistant chefs, 5 waiters, 8 servers, and 1 host working at Hannah’s restaurant. What percentage of the wor

Elina [12.6K]

Answer:

32%

Step-by-step explanation:

7 of 22 workers are assistant chefs. That is ...

7/22 × 100% ≈ 31.8181...% ≈ 32%

32% of the workers at Hannah's restaurant are assistant chefs.

8 0

3 years ago