A hockey stick cost $79. How much will Steven save if he has a coupon for 20% off.

4. If DF = 9x - 39, find EF. Help I’m so confused!!!!

topjm [15]

Answer:

EF =58

Step-by-step explanation:

from the illustration,

EF =DF - DE

given that DF =9x-39 , DE =47 EF=3x +10

substitute them into the formula,

3x +10=9x-39 - 47

solving for x

3x +10 =9x -86

grouping like terms

3x - 9x =-86 -10

-6x=-96

dividing through by -6

 $\frac{ - 6x}{ - 6} = \frac{ - 96}{ - 6}$ 

 $x = \frac{96}{6}$ 

 $x = 16$ 

but EF=3x+10

substitute x=16 into it to get the EF

EF= 3(16)+10

EF=48+10

EF=58

6 0

3 years ago

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In how many different orders can the letters in MATH be arranged?

Dmitriy789 [7]

The letters in MATH can be arranged 16 ways. D.

6 0

3 years ago

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When y = 35,x = 2.5. If the value of y varies directly with x what is the value of y when the value of xis 3.25

leonid [27]

Answer:

The value of y would be 45.5

Step-by-step explanation:

To solve this problem, start with the base form of direct variation.

y = kx

Now we can use our original values to model the equation and find k.

35 = k(2.5)

14 = k

Now we can model the equation as:

y = 14x

Now to find y, when x = 3.25, simply put 3.25 into the equation.

y = 14(3.25)

y = 45.5

8 0

3 years ago

$4,700 is invested in an account earning 6.2% interest (APR), compounded

pickupchik [31]

Answer:

(5 x (-20)) * (100 x (0.7))

4 0

2 years ago

HIIII

kicyunya [14]

Answer:

3.21

Step-by-step explanation:

got it from googIe

7 0

3 years ago

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