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3 years ago

Need helps !!!!!!!!!!

Mathematics

2 answers:

Ilya [14]3 years ago

7 0

Its A hope this helped 100% correct

Leno4ka [110]3 years ago

5 0

The answer is A. 16.9 divided by 1.3 is 13.

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One batch makes 15 lemon bars and Josh ate 2. If Claire ate twice as many as him, how many lemon bars would be left from the bat

Diano4ka-milaya [45]

Answer:

There are 9 lemon bars left from the batch.

Step-by-step explanation:

One batch = 15 lemon bars

Josh: ate 2 lemon bars

$15 - 2 = 13$

13 lemon bars remaining.

Claire: ate twice as many as Josh

Meaning: 2 × 2 = 4

$13 - 4 = 9$

9 lemon bars remaining.

There are 9 lemon bars left from the batch.

5 0

3 years ago

One angle is twice its supplement increased by 36°. Find the measures of the two supplementary angles.

agasfer [191]

Answer:

48 and 132 degrees

Step-by-step explanation:

supplement=s

one angle=2s+36

2s+36+s=180

3s+36=180

3s=144

s=48

2(48)+36=132

Therefore, 48 and 132 degrees

I hope this helped and have a good rest of your day!

8 0

3 years ago

A hippopotamus weight 1.5 tons. what is its weight in ounces

bearhunter [10]

1.5 tons = 48000 ounces

3 0

3 years ago

Alexis and Tosha challenged each other to a typing test. Alexis typed 54 words in one minute, which was 120% of the Tasha typed.

garik1379 [7]

Words of Tasha = A
A x 120/100=54
simplify 120/100=6/5
A x 6/5=54
divide both side by 6/5
A=54/(6/5)
A=54x5/6
A=45
Tasha typed 45 words

8 0

3 years ago

A study was conducted to investigate the relationship between maternal smoking during pregnancy and the presence of congenital m

Pachacha [2.7K]

Answer:

a) In the explanation.

b) P=0.09714

c) P=0.0866

d) p=0.208

Step-by-step explanation:

a) The sampling distribution will have this properties:

1 - The sampling distribution of a proportion is equal to the binomial distribution.

2 - The mean of the sampling distribution will be equal to the proportion of the population (0.328).

$\mu=\pi=0.328$

3 - The standard deviation will be equal to the square root of the product of the proportion and its complementary, divided by the sample size.

$\sigma_s=\sqrt{\pi(1-\pi)/n}=\sqrt{0.328*(1-0.328)/25}=0.094$

B) The fraction with sample proportion of 0.45 or higher is

$z=(p-\pi)/\sigma=(0.45-0.328)/0.094=1.298\\\\P(p\geq0.45)=P(z\geq 1.298)=0.09714$

C) The fraction with sample proportion of 0.20 or lower is

$z=(p-\pi)/\sigma=(0.2-0.328)/0.094=-1.362\\\\P(p\leq0.2)=P(z\geq -1.362)=0.0866$

D) The value of p that cuts off the lower 10% of the distribution corresponds to z=-1.28.

Then we have

$z=(p-\pi)/\sigma\\\\p=\pi+z\sigma=0.328+(-1.28)*0.094=0.328-0.120=0.208$

7 0

3 years ago