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2 years ago

9

25 points please help thank you so much! <3

1 answer:

BigorU [14]2 years ago

6 0

my answer and the way to solve it

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David was given two coins. One coin is twice the value of the other. Which statement is not true

IgorLugansk [536]

He was given $0.75 cents

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4 years ago

Which of the following options have the same value as 30\%30%30, percent of 818181?

Nataly_w [17]

Answer:

Option B is correct = $0.3 \times 81$

Step-by-step explanation:

<u>The complete question is:</u> Which of the following options have the same value as 30% of 81?

Group of choices is:

(A) $\frac{30}{100}\times 81 \times 100$

(B) $0.3 \times 81$

(C) $0.03 \times 81$

(D) $\frac{3}{10}\times 81 \times 10$

(E) $30 \times 81$

Now, the expression given to us is 30% of 81.

Simplifying the above expression we get;

30% of 81 = $\frac{30}{100} \times 81$

= $\frac{3}{10} \times 81$ = $0.3 \times 81$

Now, we will solve each of the given options and then see which option matches with our calculation.

Option (A) is given;

$\frac{30}{100}\times 81 \times 100$ = $30 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (B) is given;

$0.3 \times 81$

<u><em>This matches with our answer, so this option is correct.</em></u>

Option (C) is given;

$0.03 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (D) is given;

$\frac{3}{10}\times 81 \times 10$ = $3 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (E) is given;

$30 \times 81$

This doesn't match with our answer, so this option is not correct.

6 0

4 years ago

ther are 6 blades on each windmill how many total blades are on 7 windmills ? use a fives fact to solve

cupoosta [38]

$6*7=42$
There are 42 blades.

4 0

3 years ago

In the figure,what’s is m

Sergeeva-Olga [200]

Answer:

∠ DBE = 25.5°

Step-by-step explanation:

Given ∠ DBC = 90° and ∠ DBE + ∠ EBC = ∠ DBC, then

∠ DBE = ∠ DBC - ∠ EBC = 90° - 64.5° = 25.5°

7 0

4 years ago

Solve for x. Write the smaller solution first, and the larger solution second. (x-10)^2-1=0

ikadub [295]

Answer:

$x_1 = 9$ and $x_2 = 11$ .

Step-by-step explanation:

Start by adding 1 to both sides of this equation.

$(x - 10)^{2} = 1$ .

The square of what number or numbers will lead to the number "1"? It turns out that not only $1^{2} = 1$ , but $(-1)^{2}= 1$ as well. In other words, the value $(x - 10)$ can be either 1 or -1. Either way, the equation is still going to hold. That's the reason why there are two solutions to this equation.

Consider the case when $x - 10 = 1$ . Add 10 to both sides of the equation. $x = 11$ .

Now, consider the case when $x - 10 = -1$ . Again, add 10 to both sides of the equation, $x = 9$ .

Order the two solutions in an increasing order:

$x_1 = 9$ ,
$x_2 = 11$ .

4 0

3 years ago