Solve the equation and check the solution . R+4=17

What expression has the greatest value of if x=8

Elenna [48]

Answer:

d) 10-x

Step-by-step explanation:

replace x with 8 will make it equals 2, which is the greatest value

7 0

2 years ago

Nia and Trey both had sore throats, so their mom told them to gargle with warm salt water. Nia mixed 1 teaspoon salt with 3 cups

Harrizon [31]

Answer:

Each mixture has the same amount of salt for every 1 cup of water.

Step-by-step explanation:

It is provided that:

Nia mixed 1 teaspoon salt with 3 cups warm water.
Trey mixes 1 /2 teaspoon salt with one and 1/2 cups warm water.

The ratio of the number of teaspoons of salt to the number of cups of water is 1 : 3 in Nia's solution.

On dividing the amount of salt and the amount of water by 3, the ratio will be the same.

$\text{Salt}: 1\div3=\frac{1}{3}\\\\\text{Water}:3\div3=1\\$

Thus 1 : 3 is equivalent to the ratio $\frac{1}{3}:1$ , which means that Nia's solution has $\frac{1}{3}$ teaspoon of salt for every cup of water.

The ratio of the number of teaspoons of salt to the number of cups of water is $\frac{1}{2}:1\frac{1}{2}$ in Trey’s solution.

On dividing the amount of salt and the amount of water by $1\frac{1}{2}$ , the ratio will be the same.

$\text{salt}:\frac{1}{2}\div 1\frac{1}{2}=\frac{1}{3}\\\\\text{Water}:1\frac{1}{2}\div1\frac{1}{2}=1$

So Trey’s ratio is also equal to the ratio $\frac{1}{3}:1$ .

Since each mixture has the same amount of salt for every 1 cup of water, they are equally salty and taste the same.

4 0

3 years ago

Finding the perimeter of triangles

statuscvo [17]

Answer:

Well theres not question to answer but if your asking how to find the area of a triange you do:

Step-by-step explanation:

1/2×b×h

B=base/length

H=height/width

7 0

3 years ago

A factory makes boxes with length to width ratios of 3 cm to 1 cm . what should be the length of a box with a width of 33 cm ?

Leto [7]

Since we know the length (L) to width (W) ratio is 3 to 1, we can put the ratio in the form of a fraction and solve for the unknown length (L’).

Therefore we have L/W = 3/1 = L’/33

Moving the width of 33 to the other side of the equation, we have 3/1 * 33 = L’

99/1 = L’

99 = L’

Therefore the length L’ should be 99cm if the width is 33cm.

Let me know if you have any questions.

7 0

3 years ago

Let Z be a standard normal random variable and calculate the following probabilities, drawing pictures wherever appropriate. (Ro

saw5 [17]

Answer:

(a) P(0 <= Z <= 2.24) = 0.4927

(b) P(0 <= Z <= 2) = 0.4773

(c) P(-2.60 <= Z <= 0) = 0.4953

(d) P(-2.60 <= Z <= 2.60) = 0.9906

(e) P(Z <= 1.64) = 0.9495

(f) P(-1.75 <= Z) = 0.0047

(g) P(-1.60 <= Z <= 2.00) = 0.9425

(i) P(1.60 <= Z)=0.0548

(j) P(|Z| <= 2.50) = 0.9876

Step-by-step explanation:

(a) P(0 <= Z <= 2.24) = P(Z <= 2.24)- P(Z <= 0)

using the STANDARD NORMAL DISTRIBUTION TABLE

P(0 <= Z <= 2.24) = 0.9927 - 0.5 = 0.4927

(b) P(0 <= Z <= 2) = P(Z <= 2)- P(Z <= 0)

= 0.9773 - 0.5 = 0.4773

(c) P(-2.60 <= Z <= 0) = P(Z <= 0)- P(-2.60)

= 0.5 - 0.0047 = 0.4953

(d) P(-2.60 <= Z <= 2.60) = P(Z <= 2.6)- P(-2.60)

= 0.9953 - 0.0047 = 0.9906

(e) P(Z <= 1.64) = 0.9495

(f) P(-1.75 <= Z) =1 - P(Z < 2.6) = 1 - 0.9953 = 0.0047

(g) P(-1.60 <= Z <= 2.00) = P(Z <= 2.0)- P(-1.60)

= 0.9773- 0.0548 = 0.9425

(i) P(1.60 <= Z)=1 - P(Z < 1.6) = 1 - 0.9452 = 0.0548

(j) P(|Z| <= 2.50) = P(-2.5 < Z <= 2.50)= P(Z <= 2.5)- P(-2.5)

=0.9938 - 0.0062 = 0.9876

7 0

3 years ago