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3 years ago

What is 10c-3(5c-1)=2(4c+3)-5c

Mathematics

1 answer:

Eddi Din [679]3 years ago

4 0

10c-15+3-8c-6+5c
7c-18 i think so

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A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The

Natasha_Volkova [10]

Answer:

The right answer is " $0.2$ ".

Step-by-step explanation:

The given values are:

$\bar{x_0} = 3.7$

$s_o=4.95$

$t_{\frac{0.05}{2} }=2.2621$

As we know,

95% confidence for $\mu_0$ will be:

= $\bar{x_0} \pm t_{\frac{0.05}{2} },n-1\times \frac{s_o}{\sqrt{n} }$

The lower bound will be:

= $3.7-2.2621\times \frac{4.95}{\sqrt{10} }$

= $0.16\simeq 0.2$

The upper bound will be:

= $3.7+2.2621\times \frac{4.95}{\sqrt{10} }$

= $7.23\simeq7.2$

Thus the right answer is " $0.2$ "

8 0

3 years ago

The ratio of pineapple juice to sparkling water that Sylvia and her

Zarrin [17]

Answer:

Step-by-step explanation:

Pineapple:Sparkling water

3:2

A: It's proportional as for every 3 pineapple juice require 2 water no matter how big or small, the ratio stays the same.

B: 3 times as much punch, basically multiply by 3

3(3):2(3)

9:6 pineapple:water

2 (water) = 4 quarts 1=2 quarts

9(2)=18

B: 18 quarts

7 0

2 years ago

Read 2 more answers

there are 8 students at each of 4 rounds of tables in the cafeteria. there are 64 students at long tables. use the bar model to

Tomtit [17]

Step-by-step explanation:

there should be at least

4 0

3 years ago

Find the value of a.B.find the value of the marked angles

Bond [772]

Answer:

a. 18 b. 119°, 118°

Step-by-step explanation:

a. Given angles are vertical, so they are equal.

6a+11 = 2a+83

6a-2a = 83-11

4a = 72

a = 72/4

a = 18

b. Substituting the value of a in the given angles,

6a+11 = 6*18+11 = 108+11 = 119°

2a+83 = 2*18+83 = 36+83 = 118°

8 0

3 years ago

Rahul sold a painting at 10% profit. If he had sold it for 240 more, he would have made 15% profit. What is the C.P. of the pain

dangina [55]

Answer:

$4800

Step-by-step explanation:

Let x be the C.P of the painting.

Profit=10% of x

Profit= $\frac{10}{100}\times x=\frac{10x}{100}$

If S.P increase by 240 then

Profit=15% of x= $\frac{15x}{100}$

For first case

S.P=C.P+ Profit

S.P=x+10x/100

S.P= $\frac{100x+10x}{100}=\frac{110}{100}x$

For second case

New S.P $=x+\frac{15}{100}x$

= $\frac{115}{100}x$

According to question

$240+S.P=\frac{115}{100}x$

$240+\frac{110x}{100}=\frac{115}{100}x$

$240=\frac{115}{100}x-\frac{110x}{100}$

$240=\frac{115x-110x}{100}$

$240=\frac{5}{100}x$

$x=\frac{240\times 100}{5}$

$x=4800$

Hence, the C.P of the painting=$4800

6 0

3 years ago