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timurjin [86]
3 years ago
10

Lily is preheating her oven before using it to bake. The initial temperature of the oven

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0

Answer:

10 minuets 225

20 minuets 375

Step-by-step explanation:

lara31 [8.8K]3 years ago
5 0

Answer:

hgug

Step-by-step explanation:

hbhhbhbh

You might be interested in
Naomi has earned $54 mowing lawns
lyudmila [28]

Answer:

8 dollar/hr

Step-by-step explanation:

she worked 2 1/2 hrs yesterday and 4 1/4 hrs today

2 1/2 + 4/14

2+4 is 6

and 1/2+1/4 multiply 2 to both numerator and denominator of  1/2 so that the denominator of both fraction is like

it will now become 2/4+1/4 which equals 3/4

This means that she worked total of 6 3/4 hour in all yesterday and today

she is paid 54 dollar

we will need to divide 6 3/4  or written as 6.75 by 54 to find how much she earns per hour

and that would be 8

so she earns 8 dollar per hour.

5 0
3 years ago
the sum of two numbers is 63. The smaller number is 9 less than the larger number.what are the numbers
dezoksy [38]

Answer:

27 and 36

Step-by-step explanation:

x + (x - 9) = 63

2x - 9 = 63

add 9 to both sides

2x = 72

Divide both sides by2

x = 36

x - 9 = 36 - 9

x - 9 = 27

7 0
3 years ago
A new sample of 225 employed adults is chosen. Find the probability that less than 7.1% of the individuals in this sample hold m
arsen [322]

Answer:

The probability that less than 7.1% of the individuals in this sample hold multiple jobs is 0.0043.

Step-by-step explanation:

Let <em>X</em> = number of individuals in the United States who held multiple jobs.

The probability that an individual holds multiple jobs is, <em>p</em> = 0.13.

The sample of employed individuals selected is of size, <em>n</em> = 225.

An individual holding multiple jobs is independent of the others.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 225 and <em>p</em> = 0.13.

But since the sample size is too large Normal approximation to Binomial can be used to define the distribution of proportion <em>p</em>.

Conditions of Normal approximation to Binomial are:

  • np ≥ 10
  • n (1 - p) ≥ 10

Check the conditions as follows:

np=225\times 0.13=29.25>10\\n(1-p)=225\times (1-0.13)=195.75>10

The distribution of the proportion of individuals who hold multiple jobs is,

p\sim N(p, \frac{p(1-p)}{n})

Compute the probability that less than 7.1% of the individuals in this sample hold multiple jobs as follows:

P(p

*Use a <em>z</em>-table.

Thus, the probability that less than 7.1% of the individuals in this sample hold multiple jobs is 0.0043.

7 0
3 years ago
You spent 1/2 of your money at the theater and 1/4 at an arcade. you have $17.50 left. How much money did you originally have?
4vir4ik [10]
You basically add 17.50+17.50=35 and add 35+35=70, reason being is because the 35 is the 1/2 and 17.50 is the 1/4 so 70 is your answer
6 0
3 years ago
Read 2 more answers
Which shows the following expression using positive exponents?
8_murik_8 [283]
The negative exponents that are in the numerator pass to positive if the base is moved to the denominator, and the negative exponents that are in the denominator pass to positive if the base is moved to the numerator.

The the answer is the option B: xx^4 / y^2 y^6
3 0
3 years ago
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