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ludmilkaskok [199]
3 years ago
8

F(-7) if f(x) = 8x 15

Mathematics
1 answer:
scoray [572]3 years ago
3 0
All you do is plug in -7 so you get f(x)=8(-7)*15 you get -56*15 which goes to -840
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egoroff_w [7]

Answer:

1/13 ≈ 7.69%

Step-by-step explanation:

There are 4 sixes in a standard deck.  So the probability is 4/52 = 1/13, or about 7.69%.

4 0
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Value 23.7 is 1/10 of
inna [77]
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6 0
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Which is greater five ones and eight tenths or fifty eight tenths
sergiy2304 [10]
They are equal. 0.1x58=5.8, 5+0.8=5.8
8 0
3 years ago
Read 2 more answers
Shopping at Savers Mart, Lisa buys her children 4 shirts and 3 pairs of pants for $85.50. She returns the next day and buys 3 sh
maria [59]

Answer:

price for one shirt

=

$

7.50

price for one pair of pants

=

$

18.50

Explanation:

Start by letting variables

x

and

y

represent the pieces of clothing from the problem.

Let

x

be the price of one shirt.

Let

y

be the price of one pair of pants.

Equation

1

:

4

x

+

3

y

=

85.50

Equation

2

:

3

x

+

5

y

=

115.00

You can solve for each variable by using elimination or substitution. However, in this case, we will use use elimination. First, we will solve for

y

, the price of each pair of pants.

To isolate for

y

, we must eliminate

x

. We can do this by making the two equations have the same

x

values. First, we find the LCM of

4

and

3

, which is

12

. Next, multiply equation

1

by

3

and equation

2

by

4

so that

4

x

and

3

x

becomes

12

x

in both equations.

Equation

1

:

4

x

+

3

y

=

85.50

3

(

4

x

+

3

y

)

=

3

(

85.50

)

12

x

+

9

y

=

256.50

Equation

2

:

3

x

+

5

y

=

115.00

4

(

3

x

+

5

y

)

=

4

(

115.00

)

12

x

+

20

y

=

460.00

Now that we have two equations with

12

x

, we can subtract equation

2

from equation

1

to solve for

y

.

12

x

+

9

y

=

256.50

12

x

+

20

y

=

460.00

−

11

y

=

−

203.50

y

=

18.50

⇒

price for one pair of pants

Now that we know that a pair of pants is

$

18.50

, we can substitute this value into either equation

1

or

2

to find price for one shirt. In this case, we will choose equation

1

.

4

x

+

3

y

=

85.50

4

x

+

3

(

18.50

)

=

85.50

4

x

+

55.5

=

85.50

4

x

=

28

x

=

7.50

⇒

price for one shirt

∴

, the price for one shirt is

$

7.50

and the price for one pair of pants is

$

18.50

.

Step-by-step explanation:

yea

5 0
2 years ago
On a sunny day, a 4-foot red kangaroo casts a shadow that is 5 feet long. The shadow of a nearby
son4ous [18]

Answer:

16 feet

Step-by-step explanation:

Set up a proportion where x is the height of the tree:

\frac{4}{5} = \frac{x}{20}

Cross multiply and solve for x:

5x = 80

x = 16

So, the tree is 16 feet tall

8 0
3 years ago
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