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exis [7]
3 years ago
14

Selena walks from home to school each morning and back home each afternoon altogether she walks to 3/2miles each day how far is

selena live from school
Mathematics
1 answer:
Paul [167]3 years ago
4 0
Selena lives 3/4 miles away from school
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A toy company spends $20 for every doll it makes. Promotion of the dolls costs $400 and the company sells each doll for $30. How
marissa [1.9K]

Since the company spends 20$ on each doll and sells each for 30$ thats a 10$ profit.

If the company spends 400$ on promotion it would take 40 dolls since

400$ / 10$(amount of profit per doll) = 40

so to make the promotion back it would be 40 dolls but the question was to make PROFIT so it must be 41 dolls

6 0
3 years ago
Read 2 more answers
Myra is evaluating the expression –31. 7 4. 5x, when x = 2. 1. -31. 7 4. 5(2. 1) –27. 2(2. 1) –57. 12 What was Myra’s error? Myr
murzikaleks [220]

This is just an algebraic problem, the correct option is:

<em>"Myra should have multiplied 4.5 and 2.1 first."</em>

<h3>How to evaluate an expression?</h3>

Here we want to evaluate the expression:

-31.7 + 4.5*x

in x = 2.1

This just means that we need to replace x by 2.1 in the given equation.

Now, what Myra does is:

-31.7 + 4.5*2.1 = -27.2*2.1

So she took the sum between -31.7 and 4.5 first, this is her mistake, you only would do that if the expression was:

(-31.7 + 4.5)*2.1

But in our expression:

-31.7 + 4.5*2.1

The first thing you need to solve is the product in the second term, so we get:

-31.7 + 4.5*2.1 = -31.7 + 9.45 = -22.25

If you want to learn more about algebra, you can read:

brainly.com/question/4344214

4 0
2 years ago
Simplify 7y-4y-5y<br><br> Thanks :)!
Jobisdone [24]
<span>7y-4y-5y
7y-9y
-2y
...........</span>
7 0
3 years ago
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hey if anyone can help me with this question and if anyone can help me w a few other questions as well lmk I’ll pay y’all
Dima020 [189]

Answer:

0.8

Step-by-step explanation:

each mark represents 0.2

8 0
3 years ago
Which table of values satisfies the linear equation y=-x-6?
podryga [215]

Answer:

I don't understand the "table."  I'll assume x increases over a range of values.

Step-by-step explanation:

See attached table.

5 0
2 years ago
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