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dexar [7]
3 years ago
5

4. A student earned an 80% on a math test. If she got 16 questions correct, how many problems were on the test? A. 13 questions

B. 18 questions C. 20 questions D. 22 questions​
Mathematics
2 answers:
choli [55]3 years ago
7 0

Answer:

20 questions on the test so C

Step-by-step explanation:

grandymaker [24]3 years ago
5 0

Answer:

20

Step-by-step explanation:

16*100/80

1600/80=20

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Simplify the expression
hjlf

Hi, I took a while

The answer is c Have a good day

8 0
3 years ago
Read 2 more answers
Find the value of x in the picture
Hunter-Best [27]

Answer: x=128\°

Step-by-step explanation:

It is important to remember the following:

Angle\ formed\ by\ two\ chords=\frac{1}{2}(Sum\ of\ intercepted\ arcs)

In this case you can observe in the figure that "x" is an Angle formed by two chords, therefore, you can find its value applying the formula.

Therefore, the value of "x" is this:

x=\frac{1}{2}(202\°+54\°)\\\\x=\frac{1}{2}(256\°)\\\\x=128\°

6 0
3 years ago
Fine area in triangle.​
choli [55]
Answer:Area of triangle is 18cm2
There is a dotted line to show us how to do,we know the dotted means we don’t actually work that part out.
1. The bottom added together = 11,now : (11x6) ÷ 2 = 33cm2.
2.The part where there is a dotted triangle: (6x5) ÷ 2 = 15cm2.
3. 33 - 15 = 18.



3 0
2 years ago
When tom found the difference -11 (-4) he go -15.what might tom have done wrong
Arte-miy333 [17]

-x-=+ negative times a negative is a positive

5 0
3 years ago
1. You are at the grocery store and you purchase 2 packs of steaks for $9.99 each.  Sales tax is 6%.  How much will you pay in s
Artemon [7]
1 steak costs $9.99
2 steaks cost 2*9.99 = $19.98
This is before tax is applied

Apply the 6% tax to get 
6% of 19.98 = (6/100)*19.98 = 0.06*19.98 = 1.1988
which rounds to 1.20 (rounded to the nearest penny)

The sales tax is therefore $1.20

Add this to the previous total (19.98) and we get a grand total of 19.98+1.20 = 21.18 which is the final cost (with tax included)

note: we can multiply 19.98 by the value 1.06 to get 19.98*1.06 = 21.1788 and that rounds to 21.18; so it's a different route to the second answer
7 0
3 years ago
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