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3 years ago

Dominic answer 43 out of 50 questions correctly on his math test. what percentage of the questions did Dominic get correct.

2 answers:

8 0

43 question answered correctly divided by the total number of questions which is 50 gives 0.86 which rewritten would mean he got 86% of the questions correct

adelina 88 [10]3 years ago

3 0

86%

Hope this helps.

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3/4 + (1/3 ÷ 1/6) - (-1/2) =?

stepladder [879]

Answer:

[See Below]

Step-by-step explanation:

✦ Turn fractions into decimals:

$\frac{3}{4} =0.75$

$-\frac{1}{2} =-0.5$

(We will do something different for $\frac{1}{3}$ and $\frac{1}{6}$ .)

✦ Divide:

$\frac{1}{3}$ ÷ $\frac{1}{6}=2$

(Since the denominators are multiplies of each other we can divide them without having to change them into decimals.)

✦ Simplified Equation:

$0.75+2-(-0.5)$

✦ Add:

$0.75+2=2.75$

✦ Subtract:

$2.75-(-0.5)=3.25$

(Subtraction rule is if there is 2 negatives next to each other in a problem it turns into a positive.)

✦ So your answer would be:

$\frac{13}{4}$ (Exact Form)

$3~ \frac{1}{4}$ (Mixed Number Form)

$3.25$ (Decimal Form)

~<em>Hope this helps Mate. If you need anything feel free to message me. </em>

8 0

3 years ago

Prove that 25^9+5^17is divisible by 30

VLD [36.1K]

Answer:

proof is below

Step-by-step explanation:

Answer:

25^9 + 5^17=

=2^18 + 5^17

=5^17(5+1)

=5^17×6

=5^16×30 is divisible by 30

6 0

1 year ago

D) Suppose you pick one marble from the bag at random. Find the expected value of its number.

Vaselesa [24]

C) The probability that you pick at least one purple marble is 98%.

<h3><u>Probability</u></h3>

The question is incomplete, since the number of marbles of each color in the bag is missing: 3 blue, 5 green, and 2 purple marbles.

Now, to answer the questions, the following calculations must be done:

C) 100 - (2/9x9) = X
100 - 2 = X
98 = X

Learn more about probability in brainly.com/question/27656131

#SPJ1

5 0

1 year ago

Can someone explain scientific notation please it’s so confusing.

Vladimir [108]

Answer: Scientific Notation is the expression of a number n in the form a∗10b. where a is an integer such that 1≤|a|<10. and b is an integer too. Multiplication: To multiply numbers in scientific notation, multiply the decimal numbers. Then add the exponents of the powers of 10.

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Mandy has 8 ounces of fish food to feed her fish . she feeds the fish 0.4 of fish food at each feeding how many times can Mandy

sergejj [24]

20 times

This is just simple division. Do 8 divided by 0.4 and you should get 20

Hope this helps!
-Coconut;)

8 0

2 years ago