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3 years ago

11

Martha works in a toy shop and earns $44 per day. She earns an extra $2 for each toy she sells. If Martha wants to earn at least

$80 per day, which inequality shows the minimum number of toys, n, that she should sell?
44 + 2n ≥ 80, so n ≥ 18

44 + 2n ≤ 80, so n ≤ 18

44 + 2n ≥ 80, so n ≥ 34

44 + 2n ≤ 80, so n ≤ 34

2 answers:

olganol [36]3 years ago

6 0

Answer:

a

Step-by-step explanation:

pantera1 [17]3 years ago

5 0

Martha's total earnings is the sum of her fixed pay pay day and the extra she gains based on the number of toys she sold. Her total earnings may be expressed as,

44 + 2n

Since she desires to earn $80 or more, the inequality is expressed as

44 + 2n ≥ 80

Solving for n from the inequality,

n ≥18

Thus, the answer is the first choice.

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3. Bryce mows lawns to make some extra money. He charges $15 per lawn. Bryce will

anyanavicka [17]

The domain and range of a function is the set of input and output values, the function can take.

<em>The domain is [0,6]</em>
<em>The range is [0,90]</em>

<em />

From the question, we have:

$\mathbf{Rate = \$15}$

<u>The domain</u>

He cannot mow more than 6 yards a day.

This means that the domain is: 0 to 6

<em>This is properly represented as: [0,6]</em>

<u></u>

<u>The range</u>

When he mows 0 yards, his earnings is:

$\mathbf{Earnings = 0 \times \$15 = \$ 0}$

When he mows 6 yards, his earnings is:

$\mathbf{Earnings = 6 \times \$15 = \$ 90}$

This means that the range is: 0 to 90

<em>This is properly represented as: [0,90]</em>

Read more about domain and range at:

brainly.com/question/4767962

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2 years ago

x+(x+3)+x^2=75 Please help........ Everyone is giving me answers i know arent true...

son4ous [18]

x + (x + 3) + $x^{2}$ = 75

so you will add up all of the x 's but NOT the x^2

2x + 3 + $x^{2}$ = 75

Rearrange to put the x^2 in front of 2x

$x^{2}$ + 2x + 3 = 75

subtract the 75 from both sides

$x^{2}$ + 2x - 72 = 0

8 0

3 years ago

Tripp and Rico are two dogs. Tripp weighs exactly 35 pounds more than Rico. Together, they weigh exactly 49 pounds. How much doe

babymother [125]

Call the weights of the two dogs $t$ and $r$ .

We know that Tripp weights 35lbs more than Rico, or:
$t=r+35$

We also know that the total weight of both dogs is 49lbs.:
$t+r=49$

Now, by substitution:
$(r+35)+r=49$
$2r+35=49$
$2r+35-35=49-35$
$2r=14$
$r=\frac{14}{2}$
$r=7$
Rico weighs 7lbs.

Then:
$t=r+35$
$t=7+35$
$t=42$
Tripp weighs 42lbs.

To check our work:
$t+r=49$
$42+7=49$
$49=49$ CHECK!

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3 years ago

Answer this question please and thank you.

Mice21 [21]

I think It’s 0.70 and in fraction is 512/729

7 0

3 years ago

Read 2 more answers

A cone shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to half its height, wh

monitta

Answer:

The portion of the volume of the cup that is filled with water is $\frac{1}{8}$

Step-by-step explanation:

step 1

Find the volume of the paper water cup

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=6\ cm$

$h=12\ cm$

substitute

$V=\frac{1}{3}\pi (6)^{2}(12)$

$V=144\pi\ cm^{3}$

step 2

If the cup is filled with water to half its height, find out what portion of the volume of the cup is filled with water

Remember that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem the similar cone has half the height of the complete cone

so

The scale factor is equal to 1/2

therefore

The volume of the cup that is filled with water is equal to the volume of the complete cup by the scale factor elevated to the cube

$V=(1/2)^{3}(144\pi)=(1/8)144\pi\ cm^{3}$

therefore

The portion of the volume of the cup that is filled with water is

$\frac{1}{8}$

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2 years ago

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