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ser-zykov [4K]
3 years ago
13

When ms Thelma turned one her oven ,the temperateure inside was 70 degress. The temputure began to rised at a rate of 40 per min

ute . How long did it take for the oven to reach 350
Mathematics
1 answer:
Ronch [10]3 years ago
3 0

Answer:

7 minutes

Step-by-step explanation:

First, subtract 70 from 350.

350-70=280

Now, divide 280 by 40

280/40=7

It took Ms. Thelmas oven to heat up from 70 degrees to 350 degrees in 7 minutes.

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Answe

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3 years ago
Which statement describes a compromise the
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c

Step-by-step explanation:

I did this last year and got this right

4 0
3 years ago
Which relation is a function of x?
Ivahew [28]

Answer:

The last choice, the graph.

Step-by-step explanation:

The 4 relations are:

A.

A set of ordered pairs.

This is not a function because 2 ordered pairs have the same x-coordinate, 1.

B.

Table.

All ordered pairs have 0 as the x-coordinate. Since the same x-coordinate appears more than once, it is not a function.

C.

x = 3y^2 - 7

This is a function of y, and it is a horizontal parabola, so it does not pass the vertical line test. It is not a function.

D.

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Answer: The last choice, the graph.

4 0
3 years ago
After a 15% increase, a town has 115 people. What was the population before the increase?
Arte-miy333 [17]

Answer:

100 people

Step-by-step explanation:

<em>Population</em><em> </em><em>Of</em><em> </em><em>People</em><em>=</em><em>1</em><em>1</em><em>5</em><em>Percentage</em><em>ncrease</em><em>=</em><em>1</em><em>5</em><em>%</em>

<em>The</em><em> </em><em>New</em><em> </em><em>Population </em><em>corresponds </em><em>to</em><em> </em><em>1</em><em>1</em><em>5</em><em>%</em>

<em>(</em><em>That</em><em> </em><em>is</em><em> </em><em>1</em><em>0</em><em>0</em><em>+</em><em>1</em><em>5</em><em>)</em>

<em>We</em><em> </em><em>want</em><em> </em><em>to </em><em>find</em><em> </em><em>the</em><em> </em><em>popula</em><em>tion</em><em> </em><em>that</em><em> </em><em>corresponds</em><em> </em><em>to </em><em>100%</em><em> </em><em>that </em><em>is </em><em>the</em><em> </em><em>original</em><em> </em><em>population</em><em>.</em>

<em>Therefore</em><em> </em><em>Original </em><em>Population</em><em>;</em>

<em>\frac{100}{115}\times {115}{}</em>

<em>100 \: people</em>

7 0
3 years ago
Verify the identity. <br><br> cos 4x + cos 2x = 2 - 2 sin2 2x - 2 sin2 x
Alex_Xolod [135]
<span>cos 4x + cos 2x = 2 - 2 sin^2 2x - 2 sin^2 x
cos 4x + cos 2x = 1 + 1 − 2sin^2(2x) − 2sin^2(x)
 cos 4x + cos 2x = (1 - 2sin^2(2x)) + (1 - 2 sin^2(x)
 cos 4x + cos 2x = cos 4x + cos 2x</span>
6 0
4 years ago
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