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3 years ago

I need help quick please! 15 points!

1 answer:

4 0

X = money in the accounts in March

x + 210 = x + 0.15x
210 = 0.15x
210/0.15 = x
1400 = x

check..
Isaah -- 1400 + 210 = 1610
Freddie -- 1400 + 0.15(1400) = 1400 + 210 = 1610

March accounts = $ 1400

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Simplify: 2 3/4 + 5 3/5

IRISSAK [1]

Answer:

8 7/20

Step-by-step explanation:

2+5=7

3/4+3/5=15/20+12/20=1 7/20

7+1 7/20=8 7/20

7 0

3 years ago

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A publishing industry report predicts that magazine subscriptions will drop by 5% each year. If this prediction is correct, then

Rzqust [24]

Answer:

The no. of subscribers of the magazine after 5 years is = 55713

Step-by-step explanation:

Given data

Total subscribers (N) = 72000

Drop in subscriptions in each year (R) = 5%

No. of subscribers of the magazine in 5 years is given by

$N_1 = N (\frac{R}{100} )^{T}$

$N_1 = 72000 (0.95)^{5}$

$N_1$ = 55713

Thus the no. of subscribers of the magazine after 5 years is = 55713

4 0

3 years ago

Find the cos A and tan B to four decimal places. URGENT

Nikolay [14]

cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

Pythagoras theorem

$hypotenuse^{2}$ = $adjacent^{2}$ + $opposite^{2}$

$hypotenuse^{2}$ = $8^{2}$ + $5^{2}$

$hypotenuse^{2}$ = 64 + 25

hypotenuse = $\sqrt{89}$

hypotenuse = 9.4

a) Cos A

Data:

Adjacent = 8

Hypotenuse = 9.4

Formula:

Cos (Angle) = $\frac{adjacent}{hypotenuse}$

Cos A = $\frac{8}{9.4}$

Cos A = 0.8511

A = $cos^{-1}$ (0.8511)

A = 31.7°

b) Tan B

Data:

Opposite = 8

Adjacent = 5

Formula:

Tan (Angle) = $\frac{opposite}{adjacent}$

Tan B = $\frac{8}{5}$

Tan B = 1.6

B = $cos^{-1}$ (1.6)

B = 58°

Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

Learn more about cos at

#LearnwithBrainly

3 0

3 years ago

Hey Tokyo Ghoul, can you please find the value of n :)

Alex787 [66]

Answer:

54?

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Weekly demand for a product is normally distributed with a mean and standard deviation of 3,211 and 484 units, respectively. Wha

umka21 [38]

Answer:

The probability it is greater than or equal to 0.95 and less than or equal to 0.96

Step-by-step explanation:

In order to calculate the probability that weekly demand exceeds 4,044 we would have to calculate the z value as follows:

Z= (X-mean)/standard deviation

Z= (4044 - 3211)/484

Z=1.721

So, looking for standard normal distribution table 1.7 from row, we get values from 0.9554 till 0.9633, for column 0.02 it is 0.9573

Therefore, the probability it is greater than or equal to 0.95 and less than or equal to 0.96

3 0

3 years ago