Please just help with the first qu ?!!!

Mathematics

1 answer:

choli [55]3 years ago

3 0

The answer is 0.67, simply show your work subtracting then and you get that number, it’s basic subtraction, only you have to count the decimal points to put them in the correct spot

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Karen made 40 cakes

VLD [36.1K]

1. You have that Karen made 40 cakes and she gives 1/5 to Andrew and 10% to Chris, then you have:

40 cakes=5/5=1
1/5 to Andrew⇒40x1/5=8
10% to Chris=40x0.10=4

1/5----8
x----4

x=4(1/5)/8
x=1/10

2. The fraction of the 40 cakes that she have left is:

1-1/5-1/10

Therefore, the answer is: 7/10

3 0

2 years ago

Which expression is equivalent to?

Lapatulllka [165]

Answer: 7x^3y^4z^2

Step-by-step explanation:

6 0

2 years ago

The weight of people in a small town in missouri is known to be normally distributed with a mean of 154 pounds and a standard de

ad-work [718]

If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
$z=\frac{173-154}{29}=0.655$
Referring to a standard normal distribution table, and using z = 0.66, we find:
$P(\bar x\ \textless \ 173)=0.7454$
Therefore
$P(\bar x\ \textgreater \ 173)=1-0.7454=0.2546$
The answer is: 0.2546

4 0

3 years ago

Help I tested solving this problem multiple times and it is incorrect

Veseljchak [2.6K]

Area=rsquared(pi)
24/2=12(12)=144(pi)
Around 452.16
I hope that is correct.

5 0

2 years ago

Josh is hiking Glacier National Park. He has now hiked a total of 17 \text{ km}17 km17, space, k, m and is 2 \text{ km}2 km2, sp

jeka94

Josh has hiked 17 km, which is 2 km away from being 1/2 done.
In a equation, this might look like: 17 + 2 = (1/2)h 
where h is the length of the hike. 
and solve for h, h = 38 km

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

7 0

2 years ago

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