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3 years ago

10 x 10 +100 – 1000 = X

Mathematics

2 answers:

boyakko [2]3 years ago

4 0

Answer:-800

Step-by-step explanation: 10 times 10 is 100 plus another 100 is 200-1000 is -800 which is x

Readme [11.4K]3 years ago

4 0

Answer:

-800

Step-by-step explanation:

since you need to mutiply first,

10 x 10 + 100 - 1000 = X

100 + 100 - 1000 = X

200 - 1000 = X

-800 = X

hope it helps!!!

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A basketball that sold for $55 is discounted 15%. what is the sale price?

Mamont248 [21]

Answer: $46.75

Step-by-step explanation:

10% of $55=$5.50 plus

5% of $55=$2.75

Total

15% of $55 =$8.25

$55.00 less $8.25

=$46.75

5 0

4 years ago

rachel breaks up a large array into two smaller arrays. the two smaller arrays show 3 times five and 4 times 5. what was the lar

SVEN [57.7K]

Answer:

So the bigger array is 12 and 25

Step-by-step explanation:

Let's do a multiplication of this array first and Know it's result.

3 times five and 4 times 5. = (3*5) and (4*5)

= 15 and 20

Multiplying further gives us

= 15 * 20=300.

So to combine to get the bigger array.

We must get back 300 as the result of our product.

Let's multiply the row(x) with the row(x)

And the column (y) with column(y)

3 times five and 4 times 5.= 3*4 and 5*5

So the bigger array is 12 and 25

To check.

12*25 = 300

Proved.

4 0

4 years ago

What is the slope?<br> A) -5/4<br> B) 5/4<br> C)-4/5<br> D)4/5

seraphim [82]

c) 4/5 .....................

5 0

4 years ago

Read 2 more answers

Construct a confidence interval of the population proportion at the given level of confidence. x = 125, n = 250, 90 % confidence

madam [21]

Answer: 90% confidence interval would be (0.448, 0.552).

Step-by-step explanation:

Since we have given that

x = 125

n = 250

So, $\hat{p}=\dfrac{x}{n}=\dfrac{125}{250}=0.5$

We need to find the 90% confidence interval.

so, z = 1.64

So, interval would be

$\hat{p}\pm z\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.5\pm 1.64\sqrt{\dfrac{0.5\times 0.5}{250}}\\\\=0.5\pm 0.0519\\\\=(0.5-0.0519,0.5+0.0519)\\\\=(0.448,0.552)$

Hence, 90% confidence interval would be (0.448, 0.552)

3 0

4 years ago

David is buying a new car for $21,349.00. He plans to make a down payment of $3,000.00. If he's to make monthly payments of $3

loris [4]

Answer:

(A)

Step-by-step explanation:

Cost of car = $21,349

Down payment = $3000

Remaining amount left = $18,349

Monthly payments (A) = $352

n = Total periods = 5years = 5*12= 60

P(loan amount) = 18,349

r = rate of interest monthly = r/12

Using formula, A = $\frac{P\frac{r}{12} }{1-(1+\frac{r}{12})^{-60} }$

352 = [tex]\frac{18349\frac{r}{12} }{1-(1+\frac{r}{12})^{-60} }[/tex

= 0.059(approx)

Annual percentage rate = 5.9%

6 0

4 years ago

Read 2 more answers