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Tema [17]
3 years ago
7

Jeff bought 10 cookies and ate 4 of them. He ate

Mathematics
2 answers:
zmey [24]3 years ago
8 0

he ate 40 percent of the cookies

Natasha_Volkova [10]3 years ago
3 0

Answer:

Jeff ate 40% of the 10 cookies

Step-by-step explanation:

I took the cookies he ate and divided it by the total amount of cookies and then i convertied it into a percent.

4/10=0.4

0.4=40%

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What is the volume of a triangular prisim if the length is 4cm heigght is 3cm and width is 11cm
aniked [119]

Volume is a three-dimensional scalar quantity. The volume of the triangular prism is 66cm².

<h3>What is volume?</h3>

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

Given the length of the triangle is 4cm, while the width of the triangle is 11cm, therefore, the area of the base of the triangle will be,

Area of triangle = 0.5 × 4cm × 11cm

Area of triangle = 22 cm²

Now, the volume of the prism with a base area of 22cm² and a height of 3 cm is,

Volume of the triangular prism = 22cm² × 3cm = 66cm³

Hence, the volume of the triangular prism is 66cm².

Learn more about Volume:

brainly.com/question/13338592

#SPJ1

5 0
2 years ago
A hat is on sale for h dollars. The regular price is 7 times as much. Charlie has enough money to buy two hats at the regular pr
Nostrana [21]

Answer:

Charlie can buy 14 hats at the sale price

Step-by-step explanation:

Let

h ----> the sale price of the hat

x ---> the regular price of the hat

we know that

x=7h ----> equation A

so

Two hats at the regular price  is equal to multiply 2 by x

Multiply by 2 equation A both sides

2x=(7h)*2

2x=14h

2 hats at the regular price cost the same that 14 hats at the sale price

therefore

Charlie can buy 14 hats at the sale price

8 0
3 years ago
In ΔQRS, q = 1.3 inches, r = 1.6 inches and ∠S=157°. Find the length of s, to the nearest 10th of an inch.
hjlf

Answer:

2.8

Step-by-step explanation:

using cosine rule

s^{2} = 1.3^{2} + 1.6^{2} - 2(1.3)(1.6)cos 157

s = \sqrt{8.0793} = 2.842 = 2.8

8 0
3 years ago
A person invest $2,940 in an account tgat earns 4.1% annual intrest. Find when the value of the investment reaches 5,000. If nec
serg [7]

Answer:

13.22

Step-by-step explanation:

were solving for t and we know:

a(t)=p(1+(r/n))^nt

5000=a-the total

2940=p-the starting amount

.041=r-the rate

1=n-compound (annual)

plug this into a graph :

5000=2940(1+(.041/1))^x

and you get : 13.22

7 0
3 years ago
Find f(2) if f(x) = 2x + 1.<br> A) 3 <br> B) 5 <br> C) 7 <br> D) 9
Rufina [12.5K]

Answer:

The answer to your question is letter B

Step-by-step explanation:

Process

1.- Write the equation

                                   f(x) = 2x + 1

find f(2)

2.- Substitute x for 2

                                  f(2) = 2(2) + 1

3.- Simplify

                                 f(2) = 4 + 1

                                 f(2) = 5

5 0
3 years ago
Read 2 more answers
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