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3 years ago

Can someone help me with this problem.

Mathematics

1 answer:

melisa1 [442]3 years ago

5 0

Answer:

according to thi question it is of omaths the value of x is 4

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What is 2/9 × 4/1 equal to

Leokris [45]

The answer is 8/9.

Hope this helped.

8 0

3 years ago

Read 2 more answers

A line passes through (6,3) (8,4) and (n,-2) what's the value of n

andreev551 [17]

So the equation we are working with is y=mx +b. If you use the distance formula, you will find the slope. The slope is 1/2 and the y intercept is 0. your equation is y=1/2x. So plug in the point that it gives you.

-2 is your y value.

so it will look like this: (x could also be n)

-2=1/2x...solve....n=-4

5 0

4 years ago

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did

Tanya [424]

Answer:

$r=0.05$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

A is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=3\ years\\ P=\$3,000\\I=\$450\\r=?$

substitute in the formula above

$450=3,000(3r)$

solve for r

$450=9,000(r)$

$r=450/9,000$

$r=0.05$

6 0

4 years ago

A car can travel 480 miles on a full tank of petrol. The tank holds 60 litres. A driver fills the tank and sets off on a journey

strojnjashka [21]

Answer:

After travelling 360 miles, 15 litres of petrol will be left.

Step-by-step explanation:

If a car can travel 480 miles with a full tank of 60 liters of petrol, it could be said that each liter of petrol allows to travel 8 miles (480/60 = 8). Therefore, since the driver has driven his car for 360 miles, his tank has spent 45 liters of petrol (360/8 = 45). In conclusion, given that the tank has a capacity of 60 liters and that it was full at the time of departure, having spent 45 liters, 15 liters remain in the tank.

7 0

3 years ago

A sample of customers from Barnsboro National Bank shows an average account balance of $315 with a standard deviation of $87.A s

cestrela7 [59]

Answer:

A) Barnsboro Bank has more variation.

Step-by-step explanation:

Coefficient of Variation:

The coefficient of variation is given by the division of the standard deviation by the mean.

In this question:

The account balance with the highest coefficient of variation has more variation.

Barnsboro National Bank shows an average account balance of $315 with a standard deviation of $87.

$cv = \frac{87}{315} = 0.2762$

Wellington Savings and Loan shows an average account balance of $8350 with a standard deviation of $1800.

$cv = \frac{1800}{8350} = 0.2156$

Barnsboro Bank has the higher cv, so more variation, and the answer is given by option A.

8 0

3 years ago