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kotegsom [21]
3 years ago
5

Please please help!!

Mathematics
1 answer:
Olenka [21]3 years ago
4 0

Answer:

The formula T= 10d +20

A) what does each term on the right side of the equation represent?

  • 10d⇒ 10 degrees increase per 1 km and 20 deg surface temperature

B) Estimate the depth where the temperature is 60 degrees C.

  • 60=10d+20
  • 10d=40
  • d=4 km

C) What is the approximate temperature at a depth of 4km?

  • T=10*4+20
  • T=60 deg
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Which expression is equivalent to 2(x + 7) – 18x + = ?
Blizzard [7]

Answer:

-16x + 14 or 2(7-8x)

Step-by-step explanation:

= 2(x + 7) – 18x

= 2x + 14 -18x

= -16x + 14

or

= 2(7-8x)

8 0
3 years ago
Item 10 At 1:00 P.M., you have 24 megabytes of a movie. At 1:15 P.M., you have 96 megabytes. What is the download rate in megaby
alex41 [277]

Answer:

4.8 megabytes / minute.

Step-by-step explanation:

At the beginning of recording the download you have 24 megabytes.

15 minutes later, you have 96 megabytes.

In 15 minutes you have downloaded 96 - 24 = 72 megabytes

So the question turns out to be  a proportion of

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3 0
3 years ago
A middle school has the fifth and sixth grades. There are 100 fifth-grade boys and 110 fifth-grade girls. There are 7 fewer sixt
Mama L [17]

The ratio of girls to boys in the middle school = 213 : 193

Number of fifth-grade boys = 100

Number of fifth grade girls = 110

There are 7 fewer sixth-grade boys than fifth-grade boys

Number of sixth-grade boys = 100 - 7

Number of sixth-grade boys = 93

There are 10 more sixth-grade girls than sixth-grade boys

Number of sixth-grade girls = 93 + 10

Number of sixth-grade girls = 103

Total number of girls = Number of sixth-grade girls + Number of fifth-grade girls

Total number of girls = `103 + 110

Total number of girls = 213

Total number of boys = Number of sixth-grade boys + Number of fifth-grade boys

Total number of boys = `93 + 100

Total number of boys = 193

The ratio of girls to boys in the middle school = 213 : 193

Learn more on ratio here: brainly.com/question/25927869

4 0
2 years ago
Find last year’s salary if, after a 3% pay raise, this year’s salary is $32,960.
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Answer:

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Let last years salary was $x

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x + 0.03x = $32960

1.03x=$32960

x = 32960/1.03

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3 years ago
Which equation has a vertex at (3,-2) and directrix of y = 0?
bija089 [108]

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<h3>C: y+2=-1/8(x-3)^2</h3>

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