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2 years ago

So hard! please help!

Mathematics

2 answers:

Sergeeva-Olga [200]2 years ago

8 0

Answer:

please take a closer picture. :)

Step-by-step explanation:

Viefleur [7K]2 years ago

8 0

$7,158.74

Maybe you should consider deleting this because you can see almost your full name.

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Translate this phrase into an algebraic expression. The sum of 26 and twice a number

nevsk [136]

Answer:

Step-by-step explanation:

26×N

4 0

3 years ago

Twenty percent of all trucks undergoing a certain inspection will fail the inspection. Assume that 40 trucks are independently u

BaLLatris [955]

i was going to answer but siomeome beat me lol but hdjwStep-by-step explanation:

4 0

3 years ago

Lucy and Ethel’s favorite store was having a sale. Lucy bought 10 shirts and 4 pairs of jeans and spent $280. Sabrina bought 12

Sphinxa [80]

Answer:

Each shirt costs 12 dollars.

Each pair of pants cost 40 dollars.

Step-by-step explanation:

Let x represent the shirts

Let y represent the pair of jeans

10x + 4y = $280

12x + 5y = $344

Use elimination method to eliminate y

• Multiply the entire first equation by 5.

• Multiply the second entire equation by -4.

5(10x +4y = $280)

-4(12x + 5y = $344)

50x + 20y = 1400

-48x -20y = -1376

2x = 24

x = 12

Each shirt costs 12 dollars.

Solve for how much each pair of jeans costs.

10(12) + 4y = 280

120 + 4y = 280

4y = 160

y = 40

3 0

3 years ago

An arithmetic series consists of consecutive integers that are multiples are of 4. What is the sum of the first nine terms of th

Mrac [35]

Answer: The answer is 144.

Step-by-step explanation: Let 'a' be the first term and 'd' be the common difference of the given arithmetic progression (A.P.).

According to the given information, A.P. is {0, 4, 8, 12, 16, . . .}, i.e., a=0 and d=4.

The sum of first n terms is given by

$S_n=\dfrac{n}{2}\{2a+(n-1)d\}.$

So, the sum of first 9 terms is

$S_9=\dfrac{9}{2}\{2\times 0+(9-1)\times4\}=\dfrac{9}{2}(8\times 4)=144.$

Thus, the required sum is 144.

4 0

3 years ago

Read 2 more answers

Each shape is 1 whole. What fraction is represented by the shaded part of the model?

lubasha [3.4K]

Answer:

$\frac{2}{1}$

Step-by-step explanation:

Each shape is 1 whole.

In the given image, there are 4 parts in each shape.

The shaded part in the first shape is 4.

The fraction of the shaded part in the first shape

$=\frac{Number of shaded part}{Total part of the fraction}=\frac{4}{4}$

The shaded part in the second shape is 4.

The fraction of the shaded part in the second shape

$=\frac{Number of shaded part}{Total part of the fraction}=\frac{4}{4}$

The shaded part of the model $=\frac{4}{4}+\frac{4}{4}$

$=\frac{1}{1}+\frac{1}{1}$

$= \frac{2}{1}$

Hence, the fraction represented by the shaded part of the model is $\frac{2}{1}$ .

5 0

3 years ago