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Stels [109]
3 years ago
12

Climbing ar an indoor rock-climbing gym costs $8 per hour. Lizbeth has a $30 gift card to spend at the gym. Write an algebraic e

xpression for the dollar amlunt Lizbeth will have left on the card after she spends h hours of climbing. Can Lizbeth climb for 4.5 hours using only her card? explain how you know
Mathematics
1 answer:
Vesnalui [34]3 years ago
4 0

Answer:

30=8x

Step-by-step explanation:

lizabeth cant climb for 4.5 hrs because if you divide 30 by 8 you get 3.75. so Lizabeth can climb for 3.75 hrs using only her $30 gift card

You might be interested in
The interest rate r required to increase your investment p to the amount a in t years is found by . Find the interest rate r for
Dahasolnce [82]

Answer:

The interest rate was of 0.1173 = 11.73%.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

A = E + P

In this problem, we have that:

A = 10000, P = 8100, t = 2

So

A = E + P

10000 = E + 8100

E = 1900

So

1900 = 8100*I*2

I = \frac{1900}{8100*2}

I = 0.1173

The interest rate was of 0.1173 = 11.73%.

7 0
3 years ago
X² + 4x – 32<br>x2 + x - 20​
anygoal [31]

Answer:

1.  (x+8)(x-4)

2.  3x-20

Step-by-step explanation:

1.  x² + 4x – 32

x² + 8x - 4x - 32

x (x+8) - 4 (x+8)

one of the x+8's is cancelled out then you have (x+8)(x-4)

2.  x2 + x - 20​

2x+x-20

3x-20

8 0
4 years ago
Which function has zeros at x=10 and x=2
ira [324]
Hello : 
an function <span>has zeros at x=10 and x=2 is : f(x) = (x-10)(x-2)
all functions : a (x-10)(x-2)     a in R</span>
6 0
3 years ago
WX is parallel to YZ. If the measure of
valentinak56 [21]
D is 20 so degrees to create kk
And so will also z1 will measure
7 0
3 years ago
WHAT IS 2x DIVIDED BY 4 = 8 MY SMALL BRAIN CANT HANDLE THIS AND GOOGLE ISNT HELPING ME
Kruka [31]

Answer:

i believe its x= 16

Step-by-step explanation:

(4/2) 2x/4 = 8/1 (4/2)

after you do that it should be

x = 32/2, now just simplify

x=16

6 0
4 years ago
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