MATHEMATICS MIDDLE SCHOOL

PLEASE HELP!! Ill mark the brainliest!!!!

Answers

Answer 1

Answer:

Answer:

x = 5√2

y = 5√6

z = 5√3

ΔABC ~ ΔBDC ~ ΔADB

Step-by-step explanation:

ΔABC, ΔBDC, and ΔADB are all similar triangles to each other.

By definition of similar triangles, the corresponding sides have the same ratios.

CD from ΔBDC corresponds to BD from ΔADB, and BD from ΔBDC corresponds to AD from ΔADB. So:

CD / BD = BD / AD

10 / x = x / 5

x² = 50

x = 5√2

Since ΔBDC is right, we can use the Pythagorean Theorem to solve for y:

CD² + BD² = BC²

10² + (5√2)² = y²

y² = 100 + 50 = 150

y = 5√6

Again, since ΔΔABD is right, we can use the Pythagorean Theorem to solve for z:

AD² + BD² = AB²

5² + (5√2)² = z²

z² = 25 + 50 = 75

z = 5√3

Answer 2

Answer:

Answer:

x² = 5×10

x = √50

x = √5²×2

x = 5√2

z² = 5² + (5√2)²

z = √25 + 50

z = √75

z = √5²×3

z = 5√3

y² = 10² + (5√2)²

y = √100 + 50

y = √150

y = √5²×6

y = 5√6

x = 5√2

y = 5√6

z = 5√3

ΔABC ≈ ΔBDC ≈ ΔADB

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What is 50,000,000+80,000+30+4 in standard form

Answers

This answer is 50,080,034.

The answer is 50,080,034

Mrs. Smith decides to buy three sweaters and a pair of jeans. she had $120 in her wallet. if the price of jeans is $45,what is the highest possible price (p) of a sweater, if each sweater, if each sweater is the same price? write, solve, and graph the inequality.

Answers

Answer:

$3s+2j\leq $120$ . The sweaters cost $10 or less each. We graph it on a number line at 10 and use a filled in dot pointing towards zero for less than.

Step-by-step explanation:

Mrs. Smith buys 3 sweaters (represented by 3s) and 2 jeans (represented by 2j) for a total of at most $120. We don't know the total but we do know she couldn't spend more than $120.

We write $3s+2j\leq $120$ .

We know the jeans cost $45 each, so j=45. We substitute,

$3s+2(45)\leq $120\n3s+90\leq $120$

We solve for s by subtracting 90 to the other side and dividing the result by 3.

$3s+90-90\leq 120-90\n3s\leq 30\n(3s)/(3)\leq(30)/(3)$

$s\leq 10$ .

The sweaters cost $10 or less each.

What 3 numbers greater than 20 have 9 as a factor

Answers

9*3= 27
9*4= 36
9*5= 45

Three numbers greater than 20 that have 9 as a factor are 27, 36, 45~

It is 27, 36 and 45.

I did it in my Go Math!!

Your welcome!

The Appalachian Trial is a 2155 mile hiking trail in the eastern United States. You plan to hike the section of the trail that is in New Jersey at a rate of 9 miles per day. If the hike will take you eight days, what is the length of the trail in New Jersey?I WOULD REALLY APPRECIATE THE ANSWER WITH HOW TO
DO IT THANK YOUUU!!!!

Answers

The trail is 72 miles long...9×8=72

Answer: 72

Step-by-step explanation:

You take 9 times 8 and you get 72. You do this because you are hiking nine miles a day and you are hiking for eight days

Is 1.625 greater than, less than, or equal to 1.7

Answers

1.625 is less than 1.7
If the 5 were to round the 2 it would be 1.63 and the 3 cannot be rounded up so if we looked at this this way: 1.6 and 1.7 we know that 1.7 would be greater.

I believe the answer is less than

15% of Alina’s workout consisted of cardio exercise. 25% of Dane’s workout consisted of cardio exercise. Which statement must be true?If they worked out for the same amount of time, Dane did 10 more minutes of cardio exercise than Alina.

If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

If both workouts were 60 minutes, Dane spent 8 more minutes on cardio exercise than Alina did.

Alina spent less time on cardio exercise than Dane did.

Answers

The correct answer is B. If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

To figure this out, first find 15% of 80 and then 25% of 48.

To find 15% of 80, you can first find 10% of 80 which is 8(just move the decimal one place to the left). The remaining 5% will be half of 8 since 8 is 10%. Add both the numbers up and you will get 12. (8+4=12)

To find 25% of 48, you can divide 48 by 4. Since percent means 'out of 100', 25% is 25 of 100. 100 divided by 25 is equal to 4. So, 48 divided by 4 is equal to 12.

So, the final answer is B. They both equal to 12.

Hope it helps :)

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