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weeeeeb [17]
3 years ago
8

Help me with number 11 . ASAP AND PLZ SHOW YOUR WORK! THXS

Mathematics
2 answers:
Sladkaya [172]3 years ago
5 0
C hope i could help you out
Lapatulllka [165]3 years ago
3 0

15.5x = 9.25x + 12.5
Subtract 9.25x on both sides
15.5x - 9.25x = 12.5
Combine like terms
6.25x = 12.5
divide both sides by 6.25 to have x alone
\frac{6.25x}{6.25}  =  \frac{12.5}{6.25 }  \\  \:  \:  \:  \:  \:  \:  \:  \:  x = 2
So B 2 hours
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Sarah has 284 coins in a piggy bank with a total value of $22.78. Sarah has 173 pennies, 5 more dimes than nickels, the rest are
pickupchik [31]
Let P = number of coins of pennies (1 penny = 1 cent)
Let N = number of coins of nickels (1 nickel = 5 cents)
Let D = number of coins of dimes (1 dime = 10 cents)
Let Q = number of coins of quarters (1 quarter = 25 cents)

a) P + N + D + Q = 284 coins, but P = 173 coins, then:
173 + N + D + Q =284 coins
(1)  N + D + Q = 111 coins

b) D = N + 5 OR D - N =5 coins
(2) D - N = 5 coins

c) Let's find the VALUE in CENTS of (1) that is N + D + Q = 111 coins
5N + 10D + 25 Q = 2,278 - 173 (1 PENNY)
(3) 5N + 10D + 25Q = 2105 cents
Now we have 3 equation with 3 variables:

(1)  N + D + Q = 111 coins
(2) D - N = 5 coins
(3) 5N + 10D + 25Q = 2105 cents
Solving it gives:
17 coins N ( x 5 = 85 cents)
22 coins D ( x 10 = 220 cents)
72 coins D ( x 25 = 1,800 cents)
and 173 P,
proof:
that makes a total of 85+2201800+172 =2,278 c or $22.78




7 0
3 years ago
1. In the figure, m DE=124, and M BC=36. The diagram is not drawn to scale. What is m A? A) 44* B) 62* C) 80* D) 88* please help
Anuta_ua [19.1K]

The relation between arc length and exterior angle is given in the figure.

Now we are given far arc length as DE =124

We are given near arc length as BC = 36

So plugging in the formula to find measure of angle A:

angle A=\frac{far arc-near arc}{2}

angle A=\frac{124-36}{2}

angle A=\frac{88}{2}

Angle A = 44 degrees

Answer : A) 44 degree


5 0
3 years ago
Read 2 more answers
(4x-4)+(3x-2)+(2x+6)=180
Ahat [919]

Answer:

x=20

Step-by-step explanation:

Let's solve your equation step-by-step.

4x−4+3x−2+2x+6=180

Step 1: Simplify both sides of the equation.

4x−4+3x−2+2x+6=180

4x+−4+3x+−2+2x+6=180

(4x+3x+2x)+(−4+−2+6)=180(Combine Like Terms)

9x=180

9x=180

Step 2: Divide both sides by 9.

9x

9

=

180

9

x=20

Answer:

x=20

6 0
3 years ago
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If g(r) =2(r-1), Find g(10)
garri49 [273]

Answer:

g(r) = 18

Step-by-step explanation:

Substitute 10 into r

g(10) = 2( (10) -1)

        = 2(9)

        = 18

7 0
3 years ago
Vernon earns a 5 percent commission for all the drills he sells
dybincka [34]

Answer: 37500

Step-by-step explanation:

100$ dollars commission is 500 so then you do 500 times 75.

Hoped this helped

8 0
3 years ago
Read 2 more answers
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