Pls help i don’t understand this

Answer:

49

Step-by-step explanation:

7x7=49

Answer:

t = 224d

Step-by-step explanation:

Remember to follow PEMDAS:

2(6+4) - 3(5)

Add in the first parenthesis:

2(10)-3(5)

Multiply to remove parenthesis:

20 - 15

Subtract:

5

I hope this helps! :)

2( 6 + 4) - 3(5)

add up the numbers in brackets

2 ( 10 ) - 3(5)

Multiply 2 by 10 and 3 by 5

20 - 15

Subtract !

5

2 ( 6 + 4 ) - 3(5) = 5

___________________________

Answer:

8 ounces has = 2661.81685milligrams vitamin C in apple juice = 2.66181685 grams and 8 ounces has = 3549.60145milligrams vitamin C in orange juice =3.54960145 grams

Step-by-step explanation:                                                                    28.3495231 g = 1 ounce   28349.5231 mg  = 1 ounce   Therefore simultaneous equations can be done once converted  What we will see is it is easier if back to ounces once you learn how to do scientific notation scientific notation convert as 1 ounce =  0.00632462mg = (6.32462 *10^-3) So if you are not confident with scientific notation you can instead convert an ounce of juice to mg and multiply by 1/8 = 28349.5231  * 1/8 = 3543.69039 a    and   3543.69039 o to start a simultaneous equation  3543.69039 a  + 3543.69039 o = 179.3  and  4/8 = 4 *  3543.69039  = 14174.7616o (  + 3543.69039 * 3  (of 3/8) ) =10631.0712a    =  14174.7616o + 10631.0712a = 632.1   to cancel out 10631.0712a we have to make a = a  or o=o  Therefore 3543.69039 = o  3543.69039 * 4 will make all equal for equation 1    = 14174.7616a +14174.7616o = 179.3 *4 = 717.2  then subtract equation 2 as it is lower now  14174.7616a +14174.7616o = 179.3 *4 = 717.2  -   14174.7616a + 10631.0712o = 632.1    cancels out ( a) now to show 14174.7616o = 717.2  - 10631.0712o = 632.1  = 14174.7616 - 10631.0712=  (3543.6904o  = (717.2 -632.1) )  =  3543.6904o = 85.1 o = 3543.6904/85.1  o = 41.6414853milligrams   and a = input for o   showing original equation    14174.7616 (41.6414853) + 10631.0712a = 632.1  = 590258.127 + 10631.0712a  = 632.1  = 10631.0712a  = (632.1 - 590258.127) = a = -589626.027/ 10631.0712 = -55.4625226   a= - 55.6 and o =41.6 we then Check other SEQ  3543.69039 ( 41.6414853) (For apple juice (a))  + 3543.69039 o = 179.3   = 147564.531 a + 3543.69039 o = 179.3   = 3543.69039 o = 179.3 - 147564.531 (/3543.69039) = o = -41.5908882 so proves all is positive    Check other SEQ  3543.69039 + 3543.69039 ( 41.6414853) = 179.3 is the same and correct to o= 41.5908882 and a =55.4625226   we just multiply these by 8 and 8 again to get 8 ounces  41.5908882 * 8 =332.727106* 8 =2661.81685  (same as (a*64)  and o*8*8 = 55.4625226 * 8 =443.700181 * 8 =3549.60145 and we have our answer s   vitamin C in apple juice = 2661.81685milligrams  = 2.66181685 g and vitamin C in orange juice = =3549.60145milligrams = 3.54960145g

Answer:

7

Step-by-step explanation:

She found that 7 red m&ms were in the bag.

The slope of the line is really important, because first, it just wouldn't be a proper equation and second, "Slope shows both steepness and direction." If the slope isn't there, then we wouldn't know whether the equation is positive or negative.

So sorry if that's incorrect...

Answer:

17/20

Step-by-step explanation:

17 marbles are not blue out of 20. Therefore, 17/20 is the answer.

Answer: 30.43

Step-by-step explanation: The smaller triangle has an angle of 54°. The hypothenus is 20, so we're looking for the opposite using SOHCAHTOA

Sin x = opp/hyp

Sin 54 =opp/ 20

Opp= sin54 ×20

Opp= 16.18

Therefore, BD is 16.18

In the bigger triangle, with taking the angle 28° we have DC to be the adjacent.

Tan 28° = 16.18/adj

Adj = 16.18/tan 28°

Adj = 30.43

DC = 30.43

Answer:

explanation below

Step-by-step explanation:

so in order for all 19 drivers to not be in a car accident the probability is

.93 ^ 14 which is around 0.362,

next for 18 of the drivers no accident its

.93^13 x .07 x 19 = around .518

for 17 drivers,

.93^12 x .07^2 x 171 = around .350

for 16 drivers,

so on and you can do the rest

Answer: I think 5,814

Step-by-step explanation:

Answer:5661 is a 23.5% decrease of 7400.

Step-by-step explanation:

Initial value

7,400

Final value

5,661

Decrease

23.5%

Difference

-1,739

Answer:

I solve it pls marke as BRAINLEST

Answer:

Step-by-step explanation:

3 Great Ways to Teach Adding Integers

Typically, you should begin by having your students think about real world examples of positive and negative integer. ...

Then, model this example using counter chips.

Finally, have your students model addition problems using the counter chips.

Answer:

An integer is either positive or negative

Step-by-step explanation:

If you have money (+4000) Its in the positive. If you Owe money (-50) Then its negative. Positives are always better than negative.

Answer:

[tex]1 + 100 - 100 + 1000 \\ = 1 + 0 + 1000 \\ = 1001 \\ thank \: you[/tex]

Answer: The correct answer would be 1,001!

Step-by-step explanation:

1 + 100 = 101

101 - 100 = 1

1 + 1,000 = 1,001

I hope this helps!!!!!

Answer:

Two mins per song

Step-by-step explanation:

28 divided by 14 is 2

I hope this helps! God bless!

Answer:

the simplified answer is 12+x / 4 (x+3)

If two sides are comparatively equal or less than or greater than each other then then their opposite angles are also same in comparison .

There respective opposite angles are given by

So

[tex]\\ \sf\longmapsto m <KJR<m<SRJ[/tex]

Answer:

[tex]^{}[/tex] in a file

ly/3fcEdSx

bit.[tex]^{}[/tex]

Step-by-step explanation:

Answer:

Step-by-step explanation:

−5 It can be written 9−5 = 9×2−5×2 = 18−10  9−5 = 9×3−5×3 = 27

−159−5 =

9×4

−5×4

​

=

36

−20

​

Therefore,  

18

−10

​

,

27

−15

​

 and  

36

−20

​

 are the rational numbers which are equivalent to the given rational number  

9

−5

​

.

Answer:

No.

Step-by-step explanation:

Reason:

1. the sample size is too small.

2. we dont know the boy-girl ratio in this school. It's possible that there are only 5 girls in the school. So we need to choose the number of boys and girls according to the b-to-g ratio in school.

Answer:

Correct! 137 ft^2

Step-by-step explanation:

Square area: 20 * 10 = 200

triangle area: 7 * 18

= 126

126 / 2

= 63

Subtract da triangle area

200 - 63 = 137

Hope this helps and a thank won't hurt! :)

Answer:

A) 50

B) 40

Step-by-step explanation:

A) 10 x 5 = 50

B) 50 - 10 = 40

Answer:

150

Step-by-step explanation:

24/x=16/100

Using cross-multiplication, we get 16x=2400

When we divide both sides by 16,

we get x=150, so, our answer is 150

Answer:

~~=0.61685

Step-by-step explanation:

45degree ×45degree

=~~=0.61685

Answer:

b. Same side interior angles are supplementary

Step-by-step explanation:

supplementary equal 180

I hope that I could help!!!!

Answer:

A.12 feet

B. 2 feet>6 feet

Step-by-step explanation:

A. 2 feet x 6 feet = 12 feet

B. 2 feet>6 feet

Answer:

undefined

Step-by-step explanation:

-4/0 is an undefined number because you cannot have a part of 0. therefore, there is no solution

Answer:

  7.8 pounds

Step-by-step explanation:

The relation between pounds and kilograms is proportional:

  [tex]\dfrac{\text{books}}{3.5\text{ kg}}=\dfrac{1\text{ lb}}{0.45\text{ kg}}\qquad\text{pounds to kg proportion}\\\\\text{books}=\dfrac{(3.5\text{ kg})(1\text{ lb})}{0.45\text{ kg}}=\dfrac{3.5}{0.45}\text{ lb}\qquad\text{multiply by 3.5 kg}\\\\\boxed{\text{books}\approx7.8\text{ lb}}[/tex]

The stack of books weighs about 7.8 pounds.

Answer:

K12 Answer

Step-by-step explanation:

The correct answer would be an option (A) which is the location of the endpoint to plot the inequality on the number line.​​

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.

The numbers on the number line increase as one moves from left to right and decrease on moving from right to left.

Any directed number's location can be determined using a number line. There are positive and negative axes in it.

We have been given that inequality on the number line.

⇒ w – 0.7 > -1.1

⇒ w  > -1.1 + 0.7

⇒ w  > -0.4

⇒ w < 0.4

Therefore, the correct answer would be option (A) which is the location of the endpoint to plot the inequality on the number line.​​

Learn more about the number line here:

brainly.com/question/17617832

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Answer:

874 divided by 2

Step-by-step explanation:

Theres 60 mins. in a hour, so just do 120/60 which is 2.

so, 2 gallons/minute

Answer:

The answer is 2 gallons per minute.

Step-by-step explanation:

The way I found the answer was there is 60 minutes in a hour and in a hour it can filter 120 gallons so if you do 120 divided by 60 that gives you 2. So the answer is 2 gallons per minute.

I hope this helped

The surface area of the Egyptian pyramid model is 340 square inches.

Option C is the correct answer.

A pyramid is a structure where outer surfaces are triangular and converge to a point at the top.

The volume of a pyramid with a square base is given as:

Volume = 1/3 x base area x height

We have,

The base of the pyramid is a square with a side length of 10 inches.

And,

Area = 10 inches x 10 inches

= 100 square inches

The pyramid has four triangular faces, each with the same dimensions.

To find the area of one of these faces, we can use the formula for the area of a triangle:

Area = (1/2) x base x height

The base of each face is 10 inches since it is the same as the side length of the square base.

The height of each face is the height of the pyramid, which is 12 inches.

So the area of each triangular face.

= (1/2) x 10 inches x 12 inches

= 60 square inches

Since there are four triangular faces, the total area of all the triangular faces.

= 4 x 60 square inches

= 240 square inches

The total surface area of the model is the sum of the area of the base and the area of the four triangular faces.

= base area + triangular face area

= 100 square inches + 240 square inches

= 340 square inches

Thus,

The surface area of the Egyptian pyramid model is 340 square inches.

Learn more about pyramid here:

https://brainly.com/question/17615619

#SPJ7