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4 years ago

5

Harper has an amount of money saved that can be represented by the expression 4x + 16. Her friend Margaret has savings represent

ed by the expression 8x + 32. Which describes how Margaret's amount of money saved compares to Harper's amount saved?

1 answer:

maw [93]4 years ago

6 0

Answer:

Margaret's amount saved is 2 times as much as Harper's amount saved.

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Juma spent half of his july salary on school fees and two thirds of the remainder on food Calculate his July salary if he spent

Andrej [43]

The required salary of Juma in July month is sh.9600.

Given that,
he spent half of his July salary on school fees and two-thirds of the remainder on food.
he spent sh.3200 on food.

<h3>What is arithmetic?</h3>

In mathematics, it deals with numbers of operations according to the statements.

In the question,
Let the slay of Juma in July be x,
Juma spent half of his July salary on school fees = x/2
two-thirds of the remainder on food = 2/3 * x/2 = x/3
he spent sh.3200 on food i.e.
x / 3 = 3200
x = 3200 * 3
x = 9600

Thus, the required salary of Juma in July month is sh.9600.

Learn more about arithmetic here:

brainly.com/question/14753192

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2 years ago

An eyewitness observes a hit-and-run accident in New York City, where 95% of the cabs are yellow and 5% are blue. A police exper

Liula [17]

Answer:

0.1739 = 17.39% probability that the cab actually was blue

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Witness asserts the cab is blue.

Event B: The cab is blue.

Probability of a witness assessing that a cab is blue.

20% of 95%(yellow cab, witness assesses it is blue).

80% of 5%(blue cab, witness assesses it is blue). So

$P(A) = 0.2*0.95 + 0.8*0.05 = 0.23$

Probability of being blue and the witness assessing that it is blue.

80% of 5%. So

$P(A \cap B) = 0.8*0.05 = 0.04$

What is the probability that the cab actually was blue?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.04}{0.23} = 0.1739$

0.1739 = 17.39% probability that the cab actually was blue

7 0

3 years ago

If you have three quarters, three dimes, and six nickels, how much money do you have?

mr_godi [17]

4 dollars and 5 cents ($4.05) :)))

6 0

3 years ago

You are running a fuel economy study. One of the cars you find is blue. It can travel 45 1/2 miles on 1 1/4 of gasoline. Another

Sever21 [200]

Answer:

Nghe

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Thấp thoáng ánh mắt, thấp thoáng ánh mắt

Good boy

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Em cho anh tan trong miên man quên luôn đi đêm ngày

Chạm nhẹ vội vàng hai ba giây nhưng con tim đâu hay

Bối rối khẽ lên ngôi yêu thương đong đầy thật đầy

… Anh ngẩn ngơ cứ ngỡ

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Anh ngẩn ngơ cứ ngỡ

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… Hình như chính em

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Đừng thờ ơ, xin hãy lắng nghe

Và giúp anh trả lời đôi điều còn băn khoăn

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3 years ago

If AB=BC=CD what is the area of the green region? please show full workings

Romashka-Z-Leto [24]

The area of the green region is of:

9 units².

<h3>How to obtain the area of the green region?</h3>

The base is composed by three equal segments, hence their lengths are given as follows:

AB = BC = CD = 9/3 = 3.

The heights are given as follows:

B = 2.

C = 4.

D = 6.

As they are proportional.

The green region is composed by:

A rectangle of dimensions 3 and 2.

A right triangle of sides 3 and 2.

The area of the rectangle is given by the multiplication of the dimensions, hence:

Ar = 3 x 2 = 6 units².

The area of the triangle is given by half the multiplication of the dimensions, hence:

At = 0.5 x 3 x 2 = 3 units².

Then the area of the green region is given by:

A = Ar + At = 6 + 3 = 9 units².

More can be learned about the area of a figure at brainly.com/question/25292087

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1 year ago