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Ulleksa [173]
3 years ago
15

!!10 points!! If ABC - DEF, what is the scale factor of ABC to DEF? Sorry this is my 4th or 5th post on math xD

Mathematics
1 answer:
Tema [17]3 years ago
7 0

Answer:

D

21/7 is basically 1/3 so it would be C

Step-by-step explanation:

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Mr. Smith is paid $9. 50 per hour for fixing watches. Write an expression for the amount of money Mr. Smith earns in h hours. In
IrinaK [193]

Answer:

$9.50h, $(9.50h +2.20rh)

Step-by-step explanation:

Every hour ----- $9.50

h hours ----- h ×$9.50

Amount of money Mr Smith earns in h hours

= $9.50h

If he fixes a watch per hour, additional income= $2.20h

If he fixes r watches per hour, additional income= $2.20rh

Total income

= $(9.50h +2.20rh)

5 0
2 years ago
Solve this equation with substitution method :-<br> x+5 = 3 (y+5)<br> x-5 = 7 (y-5)
Damm [24]
From the first equation,
x+5 = 3(y+5)
x = 3y + 15 - 5
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3y +5 = 7y - 35
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y = 10

Since y is 10, and x is (3y +15 - 5),
x = 30 + 15 - 5 = 40
5 0
3 years ago
If Margo has about 120,000 balloons to blow up for the fair, and she's already blown up 146, how many more balloons does she nee
Naddik [55]

Answer:

See explanation below

Step-by-step explanation:

Margo needs to blow up 119,854 balloons.

120,000 - 146 = 119,854

A marathon is 26 miles.

40 minutes is equivalent to 0.67 hours

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7 0
2 years ago
I need help on 3 15 11 then explain pleases
zlopas [31]
Number 15 is 80 i dont know about the others...sorry
4 0
3 years ago
Lalo has 1500 minutes per month on his cell phone plan. How many more minutes can he use if he has already talked for 785 minute
SVEN [57.7K]
1500 - 785 = 715 
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