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pantera1 [17]
3 years ago
12

For homework Sarah had seventeen math problems and twenty-eight spelling problems. If she can finish five problems in an hour ho

w long will it take her to finish all the problems
Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0

Answer:

It will take Sarah 9 hours to finish all the the problems.

Step-by-step explanation:

5 problems per hour, 45 total problems. (math + spelling)

45 divided by 5 equals 9

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In ▵DEF, m ∠ D = 53 and m ∠ F = 68. What is m ∠ E?
Marizza181 [45]

Answer: 59

Step-by-step explanation:

a triangle always equals 180 degrees. a+b+c= 180 so you would solve for e, 53+68+e= 180

4 0
2 years ago
Solve the inequality and show your solution on a number line: −4x≥−1
kiruha [24]

<em>*To solve an inequality, it's the same as solving an equation; isolate the variable to one side.</em>

For this, all you need to do is divide both sides by -4. And since we are dividing by a <u>negative</u>, flip the inequality sign and your inequality is x\leq\frac{1}{4}

Now to graph this. Since x can be "equal to" 1/4 ( ≤ = less than or equal to), you will have a <u>closed circle on 1/4.</u> And since x can also be "less than" 1/4, <u>the arrow will be going to the left of 1/4.</u>

6 0
3 years ago
Read 2 more answers
Jessica's teacher asked her to divide 5/8 of the box of crayons
yaroslaw [1]

Answer:

Each classmate received 1/16

Step-by-step explanation:

5/8= 0.625

0.625 ÷ 10 = 0.0625

= 1/16

4 0
2 years ago
The variable y varies directly with the variable x.
Ivan

Answer:

D answer to dis question is 21

3 0
2 years ago
Please help me with this question​
Trava [24]

Applying the formula for the area of a sector and length of an arc, the value of k is calculated as: 27.

<h3>What is the Area of a Sector?</h3>

Area of a sector of a circle = ∅/360 × πr²

<h3>What is the Length of an Arc?</h3>

Length of arc = ∅/360 × 2πr

Given the following:

  • Radius (r) = 9 cm
  • Length of arc = 6π cm
  • Area of sector = kπ cm²

Find ∅ of the sector using the formula for length of acr:

∅/360 × 2πr = 6π

Plug in the value of r

∅/360 × 2π(9) = 6π

∅/360 × 18π = 6π

Divide both sides by 18π

∅/360 = 6π/18π

∅/360 = 1/3

Multiply both sides by 360

∅ = 1/3 × 360

∅ = 120°

Find the area of the sector:

Area = ∅/360 × πr² = 120/360 × π(9²)

Area = 1/3 × π81

Area = 27π

Therefore, the value of k is 27.

Learn more about area of sector on:

brainly.com/question/22972014

4 0
2 years ago
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