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Alexxx [7]
3 years ago
7

Ethan was given a gift card for a coffee shop. Each morning, Ethan uses the card to buy one cup of coffee. Each cup of coffee co

sts $2.50 and after buying 2 cups of coffee, the card had a $40 remaining balance. Write an equation for A(x),A(x), representing the amount money remaining on the card after buying xx cups of coffee.
Mathematics
1 answer:
rjkz [21]3 years ago
4 0

Answer:

$69.99 or $50.08

Step-by-step explanation:

2 for 1 by dividing by 100: 80/100 =0.8 mulitply price by decimal rate

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If a diameter of a circle has endpoints (-3,5) and<br> (5, 7), then the center of the circle is
zavuch27 [327]

Answer:

(1 , 6)

Step-by-step explanation:

the center of the circle is the midpoint of the diameter

Which is the point of coordinates:

(\frac{-3+5}{2} ,\frac{5+7}{2} )

Then the center is the point :

(1 , 6)

6 0
2 years ago
Read 2 more answers
A fruit stand has 200 apples. They order 19 bags with 12 apple each. They sell 42 bags that have 8 apples each. The owner says t
solniwko [45]

Answer:

The owner's estimate is reasonable. They ordered about 240 apples and sold about 320 so they should have about 80 fewer apples than they started with.

Step-by-step explanation:

Given that:

Number of apples already available with Owner = 200

Number of bags of apples ordered with 12 apples each = 19

Number of apples ordered = 12 \times 19 = 228

OR

Rounding off 19 to 20:

Number of apples ordered  = 12 \times 20 = 240

Around <em>240 apples were ordered</em>.

Number of bags of apples with 8 apples each, sold = 42

Number of apples sold = 42 \times 8 = 336

Rounding off 42 to 40, <em>number of apples sold = around 320</em>

<em></em>

Therefore, 80 more apples were sold than that of apples bought.

So, according to the estimate, there will be 80 fewer apples left than they started with.

<em>Correct answer is:</em>

The owner's estimate is reasonable. They ordered about 240 apples and sold about 320 so they should have about 80 fewer apples than they started with

4 0
3 years ago
Find the points on the lemniscate where the tangent is horizontal. 8(x2 + y2)2 = 81(x2 − y2)
slamgirl [31]
<span>The answers to this problem are:<span>(<span>±5</span></span>√3/8,±5/8)<span>Here is the solution:
Step 1: <span><span><span>x2</span>+<span>y2</span>=<span>2516</span>[2]</span><span><span>x2</span>+<span>y2</span>=<span>2516</span>[2]</span></span>

Step 2: Substitute:<span> 
</span><span><span>8<span><span>(<span>25/16</span>)^</span>2</span>=25(<span>x^2</span>−<span>y^2</span>)
</span><span>8<span><span>(<span>25/16</span>)^</span>2</span>=25(<span>x^2</span>−<span>y^2</span>)</span></span>
</span><span>x^2</span>−<span>y^2</span>=<span>25/32</span><span>.

Add [2] and [3]:<span> 
</span><span>2<span>x^2</span>=<span>75/32
</span><span>x^2</span>=<span>75/74</span></span>
<span>x=±5</span></span>√3/8<span>
Substitute into [2]:<span> 
</span><span><span>75/64</span>+<span>y^2</span>=<span>50/32
</span><span>y^2</span>=<span>25/64</span></span>
<span>y=±<span>5/8</span></span>

</span>
</span>
3 0
3 years ago
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41​% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults. Find the probability that the
lina2011 [118]
The answer would be c
7 0
3 years ago
If \triangle △RST is isosceles. find x then find m∠S.<br><br> x=<br> m∠S=
pickupchik [31]

Answer:

You know that you can look it up then you can see the answer right away

Step-by-step explanation:

:)

6 0
3 years ago
Read 2 more answers
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