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lana [24]
3 years ago
7

Practice: Write and Evaluate Expressions - Practice --- Level

Mathematics
1 answer:
Ray Of Light [21]3 years ago
8 0
1/2x(25-7). Difference means to subtract. And then just multiply by 1/2 since it is asking for half.
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The table represents the details of the loan for Carla's new car purchase. What is the value of C?   Cost of car $14,890 Down Pa
Levart [38]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The amount financed (A) is the cost less the down payment.

The amount repaid (B) is the monthly payment times the number of months.

The finance charge (C) is the difference between the amount repaid and the loan amount.

The total cost (D) is the sum of the cost of the car and the finance charge.

4 0
3 years ago
What is the value of x in the equation 1/5x-2/3y=30,when y =15?
evablogger [386]
1/5x + 2/3(15) = 30

1/5x +10 = 30

1/5x = 20

x = 20 * 5

x = 100
4 0
3 years ago
1 ten more than 9ones=<br>​
belka [17]

Answer:

1/10 > 9

hope it help u.

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6 0
3 years ago
How many ounces are in 2 1/4 pounds?
Verdich [7]

Answer:

36 ounces

Step-by-step explanation:

1 lb = 16oz

So just multiply 2 lb by 16 to get 32.

Then you can multiply 16 by 0.25 (a.k.a 1/4) OR divide 16 by 4

You get 4 ounces

Finally, add 32 and 4 to get your total of 36 ounces.

8 0
2 years ago
Read 2 more answers
A restaurant charged one customer $28.20 for 3 small dishes and 5 large dishes and charged another customer $23.30 for 4 small d
alexandr1967 [171]

Let s and l be the price of small and large dishes. The first equation is

3s+5l = 28.20

While the second equation is

4s+3l=23.30

(I assume that you meant "4 small dishes and 3 large dishes")

If we multiply the first equation by 4 and the second by 3 we have

\begin{cases}12s+20l=112.8\\12s+9l=69.9\end{cases}

Subtract the two equation and you have

11l = 42.9 \iff l = 3.9

Substitute this value in one of the equation to derive

3s+5\cdot 3.9 = 28.20 \iff s=2.9

So, one small dish costs 2.9 and one large dish costs 3.9. This means that 2 small and 4 large dishes cost

2.9\cdot 2 + 3.9 \cdot 4=21.4

6 0
3 years ago
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