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3 years ago

Four dollars more than seven times Julie's amount of money.

Mathematics

1 answer:

balu736 [363]3 years ago

5 0

Answer: 7 plus 4 equals 11

Step-by-step explanation:

Brainly plz

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What is the work for 309÷76,255

Ber [7]

.004052
___________
76255) 309.00000
305.020
_______
4.98000
3.81275
__________
1.16725

5 0

3 years ago

1. SOLVE THE EQUATION BELOW

Gemiola [76]

Answer:

D F/a =m Mrs Kaulter

Step-by-step explanation:

F = ma

Divide each side by a

F/a = ma/a

F/a =m

5 0

3 years ago

Gwen has $20, $10, and $5 bills in her purse worth a total of $220. She has 15 bills in all. There are 3 more $20 bills than the

klio [65]

Answer:

x = 8 ( 20$ bills)

y = 5 ( 10 $ bills)

z = 2 ( 5 $ bills)

Step-by-step explanation:

Let call x, y, and z the number of bill of 20, 10, and 5 $ respectively

then according to problem statement, we can write

20*x + 10*y + 5*z = 220 (1)

We also know the total number of bills (15), then

x + y + z = 15 (2)

And that quantity of 20 $ bill is equal to

x = 3 + y (3)

Now we got a three equation system we have to solve for x, y, and z for which we can use any valid procedure.

As x = 3 + y by substitution in equation (2) and (1)

( 3 + y ) + y + z = 15 ⇒ 3 + 2*y + z = 15 ⇒ 2*y + z = 12

20* ( 3 + y ) + 10*y + 5*z = 220 ⇒ 60 + 20*y + 10*y + 5*z = 220

30*y + 5*z = 160 (a)

Now we have only 2 equations

2*y + z = 12 ⇒ z = 12 - 2*y

30*y + 5*z = 160 30*y + 5* ( 12 - 2*y) = 160

30*y + 60 - 10*y = 160

20*y = 100

y = 100/20 y = 5 Then by substitution in (a)

30*y + 5*z = 160

30*5 + 5*z = 160

150 + 5*z = 160 ⇒ 5*z = 10 z = 10/5 z = 2

And x

x + y + z = 15

x + 5 + 2 = 15

x = 8

4 0

3 years ago

Read 2 more answers

On three examinations, you have grades of 85, 78, and 84. There is still a final examination, which counts as one grade In order

kirill [66]

Answer:

The average of the provided grades are 86.75

Step-by-step explanation:

Consider the provided information.

On three examinations, you have grades of 85, 78, and 84. In order to get an A your average must be at least 90.

In the last exam you get 100 marks now calculate the average by using the formula:

$\frac{\text{Sum of observations}}{\text{Number of observations}}$

$\frac{85+78+84+100}{5}$

$\frac{347}{5}$

$86.75$

86.75 is less than 90 so you will not get A.

The average of the provided grades are 86.75

6 0

4 years ago

The geometric mean between 8 and 18. <br> a) 8<br> b) 12<br> c) 14<br> d) 16

olasank [31]

Explanation:

The geometric mean of two positive numbers a and b is √ab. The ratio a:√ab is equal to the ratio √ab:b.

8 0

3 years ago