MATHEMATICS MIDDLE SCHOOL

3. Danielle sorted her marbles into 8 groups. She put 3 red marbles, 3 blue marbles, and 2yellow marbles in each group. How many marbles did she have in all?
A. 16
B. 18
C. 24
D. 64

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Each group has

3 red

3 blue

2 yellow

That's a total of 3 + 3 + 2 = 8 marbles per group

Also, there are 8 same type of groups, so total number of marbles in 8 groups would be:

8 * 8 = 64

Total marbles = 64

Answer choice D is right.

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Erin received the following scores on her last four spelling tests.21\25, 82%, 0. 8, 17\20.Which of these is Erin’s highest score?
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What is 100/5 in simplest form? btw i already know the answer

In triangle ABC, the measure of ∠B is 90°, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F correspond to vertices A, B, and C, respectively, and each side of triangle DEF is 1/3

the length of the corresponding side of triangle ABC. What is the value of sinF?

Answers

Answer:

Step-by-step explanation:

From.the Pythagoras theorem,

DF² = DE² + EF²; therefore, DE²= DF²-EF².since each of the side of DEF is 1/3 of sides ABC , it implies that ,1/3 of 20 = 6.7 ( DF)and 1/3 of 16 = 5.3 (EF)

DE² = 6.7²-5.3²;

DE² = 44.89 - 28.09

DE² =16.8

Therefore taking the square root is both side to get the true value of DE

√DE² = √16.8; DE = 4.098.

there the value of sin of angle F

SinF°= 4.098/6.7; = 0.6116

Therefore F° = sin-¹0.6116; 37.7°.

SinF = 0.6116, while angle F = 37.7°

Note: the purpose of using the Pythagoras theorem is to help you find the third side of triangle DEF which is DE

4t+14=6t/5+7 what is the answer

Answers

4t+ 14= 6t/5+ 7
⇒ 4t+ 14= 6/5t+ 7
⇒ 4t -6/5t= 7 -14
⇒ (4 -6/5)t= -7 (distributive property)
⇒ 14/5t= -7
⇒ t= -7/ (14/5)
⇒ t= -5/2
⇒ t= -2.5

Final answer: t= -2.5~

mr.smith is having some photos enlarged for his studio he wants to enlarge a photo that is 5in by 7in so the dimensions are 3 times larger than the original what are the dimensions of the enlarged photo

Answers

9 times larger

The reason is simple, all you need to do is 7 x 3, and 5 x 3, giving you the l x w of 15 and 21 inches. You multiply these numbers together, meaning the original length and width (l x w), which would be 5 and 7, which equals 35.

From here, you multiply 15 and 21, which gives you 315.

Divide 35 from 315, and see what you get!
Hope this helps!

What is the slope of the line with the equation 0 = -15x + 6y

Answers

Answer:

15/6

Step-by-step explanation:

if ax^2+bc+c=0 is given equation then slope of this equation will be

m=-a/b

Patrick ate 3/5 of a small pizza. For lunch Saturday he4 ate 1/2 of the leftover pizza. How much pizza did he eat for lunch on Saturday?

Answers

Whole one pizza = 1 = 5/5
Patrick ate on Friday 3/5 so 5/5-3/5=2/5
On Saturday P. ate 1/2 of 2/5 so = 1/2*2/5= 2/10=1/5
So deduct 1/5 from 2/5 and we have 1/5 left

Final answer:

Patrick ate 1/5 of the pizza for lunch on Saturday. To find this, we first calculated how much pizza was left over after he initially ate 3/5 of it, which was 2/5. Then, knowing he ate half of the leftover pizza, we multiplied 2/5 by 1/2 to get 1/5.

Explanation:

The subject of this question is fractions. In this problem, we want to find out how much of the leftover pizza Patrick had for lunch on Saturday. Initially, Patrick ate 3/5 of the pizza, which means 2/5 of the pizza was left over. Then, he ate 1/2 of that remaining pizza for lunch on Saturday.

To find how much pizza he actually ate, we need to multiply the fractions. That is, 2/5 (leftover pizza) * 1/2 (Patrick's lunch). When you multiply these two fractions, you get 2/10 or 1/5. Therefore, Patrick ate 1/5 of the pizza for lunch on Saturday.

Learn more about Fractions here:

brainly.com/question/10354322

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The temperature at a mountain base camp was −5 degrees Celsius on Wednesday. Thursday morning, the temperature was 2 degrees Celsius lower than what it was on Wednesday. By Thursday evening, the temperature was 1 degree Celsius lower than what it was that morning. What was the temperature at the base camp Thursday evening?−9 degrees Celsius
−8 degrees Celsius
−7 degrees Celsius
−6 degrees Celsius