MATHEMATICS MIDDLE SCHOOL

What is DE?
Enter your answer as a decimal in the box
12.6
units

Answers

Answer 1

Answer:

Answer:

$DE=6.3\ units$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem

Triangles ABC and DBE are similar by AA Similarity Theorem

$(AC)/(DE)=(AB)/(DB)=(BC)/(BE)$

we have

$AC=12.6\ units$

$AB=2DB$

substitute

$(12.6)/(DE)=(2DB)/(DB)/tex]</p><p>Simplify</p><p>[tex](12.6)/(DE)=2$

$DE=12.6/2\nDE=6.3\ units$

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mrs.johnson gave a sum of money to her son and daughter in the ratio 5:6. her daughter received $2,400.how much did mrs.johnson give away in all?
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Denise shaded 26% of a 100-square grid to represent the portion of the cars in the parking lot that were red. Which best describes the portion of all the cars that were red?

Answers

26/100=13/50 hope its right and it helped

Find the total surface area of the figure. A. 150.7 ft sq.
B. 402.1 ft sq
C. 301.5 ft sq
D. 288.4 ft sq

Answers

Answer:

Answer is B

surface area for a cylinder : 2 (pi) r h + 2 (pi) r^2

r= 4

h= 12

2 (pi) x 4 x 12 + 2 (pi) × 4^2

= 402 .1

Answer:

it is B

Step-by-step explanation:

Do you know Prime factorization

Answers

Yes i do know prime factorization

Yes I do know prime factorization. I just learned it

ed ReviewA company makes bars of soap.soapThe is mixed in large vats, then poured intomolds to make 560 bars of soap. Themixture weighs 1792 ounces. How muchdoes each bar of soap weigh?

Answers

Given:
weight of mixture : 1792 ounces
output of mixture : 560 bars of soap

to get the weight per unit, we simply divide by total weight by the total number of output.

1792 oz / 560 bars = 3.2 ounces per bar.

Round 218 to the nearest hundred

Answers

When rounding to the nearest hundred, if the number in the tens place is less than 5, you should round downwards (keep the same number shown in the hundreds place). However, if the number in the tens place is 5 or greater, than you have to round up, which means adding one to the number currently in the hundreds place. So, for this problem, the digit 1 is in the tens place. Because 1 is less than 5, we know that we have to round down. Thus, 218 rounded to the nearest hundred is 200. Hope this helps!!

Cost of a sled:$99.50
Markup:95%
find the selling price