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3 years ago

Carmella turns on her oven.

Mathematics

1 answer:

Alexus [3.1K]3 years ago

8 0

Answer:

D. 80x + 70 = 390

Step-by-step explanation:

80 times x (the degrees it heats up per minute times the number of minutes) + 70 (the degrees the oven was already at) = 390 (the number of degrees the oven needs to preheat to.)

This is the only answer that makes sense.

Hope this helps! :D

Also, where can I buy an oven that heats up this fast? XD

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Explain how to estimate the quotient using compatible numbers. 27 and two-thirds divided by 3 and StartFraction 9 over 10

melisa1 [442]

Answer:

Step-by-step explanation:

Given:

27 + 2/3 ÷ 3 + 9/10

In division, compatible numbers are numbers that can be divided mentally.

27 + 2/3 ÷ 3 + 9/10

27 + 0.67 ÷ 3 + 0.9

27.67 ÷ 3.9

= 7.0948717948717

Approximately

= 7

But, alternatively

27.67 ÷ 3.9

27.67 is closer to 28

3.9 is closer to 4

Therefore,

28 ÷ 4

= 7

The quotient of 27 + 2/3 ÷ 3 + 9/10 using compatible numbers is around 7

7 0

3 years ago

How many times does this number go into that number

rosijanka [135]

Assuming you mean how many times 42 goes into 166:

166 ÷ 42 = 3.9523809

6 0

3 years ago

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What is the area of the square helicopter landing pad? H 30 m - 30 m-

Novosadov [1.4K]

30 x 30=900 square meters

4 0

3 years ago

at an assembly 7 out of the first 10 students who entered the gym were carrying the backpack. Based on the information, if 700 s

Rufina [12.5K]

i dont know :/ im sorry and my mind is not on the mood for work sadly

4 0

3 years ago

A particular fruit's weights are normally distributed, with a mean of 476 grams and a standard deviation of 36 grams. The heavie

4vir4ik [10]

Answer:

Step-by-step explanation:

Given that:

mean (μ) = 476 grams, standard deviation (σ) = 36 grams. P(z) = 19%

The z score shows by how many standard deviation the raw score is above or below the mean. It is given by the equation:

$z=\frac{x-\mu}{\sigma}$

Since the 19% weigh more, therefore 81% (100% - 19%) weigh less.

From the normal distribution table, the z score that corresponds to a probability of 81%(0.81) = 0.87

We substitute z = 0.88 in the z score equation to find the raw score. Therefore:

$z=\frac{x-\mu}{\sigma}\\0.87=\frac{x-476}{36}\\ x-476=31.32\\x=31.32+476\\x=507.32\\$

x ≅ 507 grams

Therefore 19% of fruits weigh more than 507 grams

7 0

3 years ago