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3 years ago

Write the inequality (without solving)

Mathematics

1 answer:

Lesechka [4]3 years ago

6 0

Answer:

$2.15f+4.6n\leq 150$

Step-by-step explanation:

She has a budget of $150, which means that she can spend no more than that amount. Therefore, use the less than or equal to symbol: ≤

Each folder is $2.15, so you are going to multiply: 2.15 × f

Each notebook is $4.60, so you will multiply: 4.6 × n

You want to know how many notebooks and folders you can buy for $150, so add the notebooks and folders.

Make the equation:

$2.15f+4.6n\leq 150$

:Done

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Find the surface area of each figure (spheres and hemispheres)

xenn [34]

Answer:

7. 1520.53 cm²

8. 232.35 ft²

9. 706.86 m²

10. 4,156.32 mm²

11. 780.46 m²

12. 1,847.25 mi²

Step-by-step explanation:

Recall:

Surface area of sphere = 4πr²

Surface area of hemisphere = 2πr² + πr²

7. r = 11 cm

Plug in the value into the appropriate formula

Surface area of the sphere = 4*π*11² = 1520.53 cm² (nearest tenth)

8. r = ½(8.6) = 4.3 ft

Plug in the value into the appropriate formula

Surface area of the sphere = 4*π*4.3² = 232.35 ft² (nearest tenth)

9. r = ½(15) = 7.5 m

Surface area of the sphere = 4*π*7.5² = 706.86 m² (nearest tenth)

10. r = ½(42) = 21 mm

Plug in the value into the formula

Surface area of hemisphere = 2*π*21² + π*21² = 2,770.88 + 1,385.44

= 4,156.32 mm²

11. r = 9.1 m

Plug in the value into the formula

Surface area of hemisphere = 2*π*9.1² + π*9.1² = 520.31 + 260.15

= 780.46 m²

12. r = 14 mi

Plug in the value into the formula

Surface area of hemisphere = 2*π*14² + π*14² = 1,231.50 + 615.75

= 1,847.25 mi²

8 0

3 years ago

Find the measure of a A. 40 B. 25 C. 50 D. 12.5

Thepotemich [5.8K]

Answer:

c because it will be half of it meaning you have to multiply rhem

3 0

3 years ago

Question 4. In the graph, lines f and g intersect at P(6,6). What is the area, in square units, of the shaded region? * E. 15 F.

erastova [34]

Answer:

Step-by-step explanation:

i guess the dotted lines outline a square

so get the area of the square which is 6×6=36

then don't focus on the shaded part but unshaded you'll see two right angled triangles

$a = 1 \div2b \times h$

you will get a total for both as 21

then get the area of the square 36-21=15

so the area becomes 15

3 0

3 years ago

Priya have a recipe for banana bread she is a 7 1/2 cups of flour to make three loaves of banana bread Andrew will follow up the

katrin2010 [14]

Answer:

Andrew will do 7 1/2 + 7 1/2 which equals 15

Step-by-step explanation:

Hope it helps

Im not completely sure that its right...

8 0

3 years ago

Explanation only one sentence

Scorpion4ik [409]

There will be about 140 million people in 2003

4 0

3 years ago