Find the product: -1(-28)=

Hey there! I'm happy to help!

Let's use the variables A and B to represent the number of pounds used of types A and B.

4.10A+5.30B=640.50

A+B=141

Let's rearrange the bottom equation to solve for B.

A+B=141

Subtract A from both sides.

B=141-A

We can put this value of B into the first equation to solve for the number of pounds of type A Omar used.

4.10A+5.30(141-A)=640.5

We use distributive property to undo parentheses.

4.10A+747.3-5.3A=640.5

We combine like terms.

-1.2A+747.3=640.5

Subtract 747.3 from both sides.

-1.2A=-106.8

Divide both sides by -1.2

A=89

Omar used 89 pounds of type A coffee in this month's blend.

Have a wonderful day! :D

Answer:

[tex]-\frac{19}{8}[/tex]

Step-by-step explanation:

[tex]\frac{1}{4}-\frac{21}{8}=\frac{2}{8}-\frac{21}{8}=\frac{2-21}{8}=-\frac{19}{8}[/tex]

The required number line represents 2 whole intervals (16/8) and then 7 more parts (7/8) from 0, and ends up at the point marked 2 3/8.

In math, a number line can be defined as a straight line with numbers arranged at equal segments or intervals throughout. A number line is typically shown horizontally and can be extended indefinitely in any direction.

To add fractions with different denominators, we need to find a common denominator. In this case, we can use 8 as the common denominator:

1/4 + -21/8

1/4 - 21/8

2/8 - 21/8

-19/8

-2 3/8

To represent 19/8 on a number line, we need to divide the interval between 0 and 3 into 8 equal parts, and then count 23 of these parts from 0.

The number line would look something like below as shown.

Thus, the required number line represents 2 whole intervals (16/8) and then 7 more parts (7/8) from 0, and ends up at the point marked 2 3/8.

Learn more about the number line here:

brainly.com/question/17617832

#SPJ3

Answer:

Step-by-step explanation:

Suppose pieces of chocolate pie served at a restaurant average 350 calories with a standard deviation of 20 calories. Calories have a Normal distribution due to inexact cutting of the pies. Which graph represents the proportion of pieces of pie that have more than 375 calories.

Answer: The z score is used to determine how many standard deviations that the raw score is above or below the mean. If the z score is positive then the raw score is above the mean and for a negative z score means the  raw score is below the mean. The z score is given as:

[tex]z=\frac{x-\mu}{\sigma}[/tex]

Given that: μ = 350 calories, σ = 20 calories, x > 375

[tex]z=\frac{x-\mu}{\sigma}\\\\z=\frac{375-350}{20}=1.25[/tex]

From the graph, The shaded area represents the proportion of pieces of pie that have more than 375 calories

From the normal distribution table, P(x > 375) = P(z > 1.25) = 1 - P(z < 1.25)

= 1 - 0.8944 = 0.1056 = 10.56%

Answer:

585 Feet

Step-by-step explanation:

First, you have to consider how much seconds in a minute. 60.

Then, multiply 75 feet to make it match to 60 seconds. So 60/25. You get 2.4. You multiply 2.4 by 75 to get 180 feet per minute.

Finally, you multiply 180 by 3.25, as it is 3.25 minutes.

Answer:

7

Step-by-step explanation:

Just put the numbers in order the find the number in the middle in the case that there are to numbers add the together then divide by 2

Answer:

7/16

Step-by-step explanation:

3/8 = 6/16

7/16 is greater than 6/16

Hope This Helps :)

Answer:

7/16

Step-by-step explanation:

Simplified 7/16 is 3.5/8, which is more than 3/8. The rest of the answers are less than 3/8.

Answer:

102.2 miles

Step-by-step explanation:

First, convert the minutes to hours:

101.5/60

= 1.69 hours

Multiply this by 60.4 to find how many miles it covered:

= 102.2 miles

Answer:

5pi/3x180grados/piradianes

900/3=300 grados

Step-by-step explanation:

Answer:x=8

Step-by-step explanation:Reorder the terms:

10x + -2(6 + x) = 52

10x + (6 * -2 + x * -2) = 52

10x + (-12 + -2x) = 52

Reorder the terms:

-12 + 10x + -2x = 52

Combine like terms: 10x + -2x = 8x

-12 + 8x = 52

Solving

-12 + 8x = 52

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '12' to each side of the equation.

-12 + 12 + 8x = 52 + 12

Combine like terms: -12 + 12 = 0

0 + 8x = 52 + 12

8x = 52 + 12

Combine like terms: 52 + 12 = 64

8x = 64

Divide each side by '8'.

x = 8

Simplifying

x = 8

Answer:

x=5

Step-by-step explanation:

Answer:

3.048 meters

Hope this helps

Answer:

1) 16.8ft

2) 32.2ft

3) 50.9cm

4) 14.4m

(all answers rounded off to the nearest tenth)

Step-by-step explanation:

Please see attached pictures for the full solution.

Answer:

The circumference is 24.69 in.

The area is 48.52 in.

Step-by-step explanation:

So, Cf=2π(3.93)=24.69in

So, A=π(3.93)^2=48.52in

Answer:

4cm - 4mm = 3.6 cm

So, B and C equals 3.6 cm

Answer:

c

Step-by-step explanation:

just plug each coordinates

5=x

18=y

if its tru for both then thats the answer

Answer:

5,8

Step-by-step explanation:

y=4x-2-----(i)

y=x+13----(ii)

Equating equation i and ii we get,

[tex]4x - 2 = x + 13[/tex]

[tex]4x - x = 13 + 2[/tex]

[tex]3x = 15[/tex]

[tex]x = 3[/tex]

[tex]substitutin \: the \: value \: of \: x \: in \: equation \: (i)[/tex]

[tex]y = 4x - 2[/tex]

[tex]y = 4 \times 5 - 2[/tex]

[tex]y = 20 - 2[/tex]

[tex]y = 18[/tex]

Marks this as a brainest answer ok.

Subtract 50 from 125

75

Divide by 15 (number of dollars per day)

5

If Maisie walks her neighbors dogs for 5 days, she will save up to a total of 125

Hope this helps :)

Answer:

✔ 50 + 15d = 125

What equivalent equation can you write after combining like terms?

✔ 15d = 75

How many days will Maisie have to walk the dogs?

✔ 5 days

Step-by-step explanation:

took. test.

Answer:

Fractions:

a. 1/4

b. 1 and a half

c. 2/3

Percentages:

a. 25%

b. 50% unsure abt this one

c. 66.67%

Step-by-step explanation:

Answer:

180000

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

i have the same question i found it on quizzes

Answer:

g

Step-by-step explanation:

Answer:

point g is the answer

Step-by-step explanation:

no the frame will not fit

7 6/11 =7.545454

7.545454 is larger than 7.5

Answer:

23

Step-by-step explanation:

just trust me

Answer:

I think it would be 50 even numbers

Answer:

The answer is 3.

Step-by-step explanation:

The equation would be: x = 14.95 divided by 4.99, rounded to the nearest one:

14.95 divided by 4.99 = 2.99599...

Normally, I would not round the number to the nearest digit in problems like these, but 2.99599 is quite close to 3, so this might be an exception.

Anyways, that's how I got my answer.

Hope this helped.

Answer:

The answer could be any number above -7.

So, it could be...

(-8)

(-9)

(-10)

etc.

Step-by-step explanation:

The bigger the negative number, the lower the value.

Answer:

the magnitude of a real number without regard to its sign.

Step-by-step explanation:

◈ Area of square room :

[tex]:\implies\sf\:A_s=(side)^2[/tex]

[tex]:\implies\sf\:A_s=(12)^2[/tex]

[tex]:\implies\bf\:A_s=144\:m^2[/tex]

◈ Area of triangular carpet :

[tex]:\implies\sf\:A_t=\dfrac{1}{2}\times base\times perpendicular[/tex]

[tex]:\implies\sf\:A_t=\dfrac{1}{2}\times 10\times 8[/tex]

[tex]\:\implies\sf\:A_t=\dfrac{1}{2}\times 80[/tex]

[tex]:\implies\bf\:A_t=40\:m^2[/tex]

◈ Uncovered area of room :

[tex]:\implies\sf\:\Delta A=A_s-A_t[/tex]

[tex]:\implies\sf\:\Delta A=144-40[/tex]

[tex]:\implies\:\boxed{\bf{\blue{\Delta A=104\:m^2}}}[/tex]

The GCF of 45 and 75 is 15.

So, divide both numbers by 15.

45/15 = 3

7515 = 5

Therefore, the simplified version of the ratio is 3 to 5

Best of Luck!

Answer:

3 hours

Step-by-step explanation:

369 divided by (58+65)

Answer:

18/30 simplified is 3/5

Step-by-step explanation: