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qwelly [4]
3 years ago
6

A box contains red, purple and green beads in the ratio 4:6:7 There are 1428 more green beads than red beads.

Mathematics
1 answer:
Rama09 [41]3 years ago
8 0

Answer:

3332 green beads

Step-by-step explanation:

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Piper claims that 3(2a + 2) is equivalent to 5a + 6. She checks her claim by substituting -3 for a. Is Piper's claim correct? Wh
Paha777 [63]

Answer:

Piper's claim is not correct.

Step-by-step explanation:

3(2(-3)+2) = 5(-3)+6

3(-6+2) = -15 + 16

-18 + 6 = 1

-12 = 1

6 0
2 years ago
The ratio of blue skittles to red skittles in Tayler's bag is 3 to 4. If there are 20 red
adoni [48]

Answer:

Tayler has 35 SHKITTLES IN ALL

Step-by-step explanation:

Since Tayler has 20 red Skittles, and the ratio of blue skittles to red skittles is 3 to 4, that means that Tayler has 3/4 as many blue skittles as she does red skittles. 3/4 of 20 is 15

20 + 15 = 35

Thus, Tayler has 35 skittles

SHKITTLES lol

6 0
2 years ago
Please help me please
Sergeu [11.5K]

Answer:

0.09,70%,5/8, 0.8

7 0
2 years ago
Read 2 more answers
It costs more to produce defective items - since they must be scrapped or reworked - than it does to produce non-defective items
ale4655 [162]

Answer: a) 1082, b) wider.

Step-by-step explanation:

Since we have given that

Margin of error = 0.1 millimeter  = E

Standard deviation = 2 mm = σ

Critical value would be

z_{\frac{\alpha}{2}}=z_{0.05}=1.645

a) Sample size would be

n=(\dfrac{z_{\frac{\alpha }{2}}\times \sigma}{E})^2\\\\n=(\dfrac{1.645\times 2}{1})^2\\\\n=1082.41\\\\n=1082

b) Sample size, n = 100

So, the margin of error would be

E=z_{\frac{\alpha }{2}}\times \dfrac{\sigma}{\sqrt{n}}\\\\E=1.645\times \dfrac{2}{\sqrt{100}}\\\\E=1.645\times \dfrac{2}{10}\\\\E=0.329

Since the margin of error in b part is more than a part, as we know that the higher the margin of error, the wider the confidence interval.

So, it would have wider confidence interval.

Hence, a) 1082, b) wider.

4 0
3 years ago
Don is 7 years younger than maggie. the sum of their ages is 25. how old is don
xz_007 [3.2K]
D=m-7
d+m=25
m-7+m=25
2m-7=25
2m=32
m=16
d=16-7
d=9

don is 9
6 0
3 years ago
Read 2 more answers
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