7. During the Middle Ages, people often used grains, scruples, and drahms to measure the weights of different medicines. If 120 grains are equivalent to 6 scruples and 6 scruples are equivalent to 2 drahms,

how many drahms are equivalent to 300 grains? Explain your reasoning. If you get stuck, try creating a table.

Answer:

b. -1

Step-by-step explanation:

9=4a+13

-13    -13

--------------

-4=4a

4a/-4

a=-1

Distance will be the hypotenuse of a right triangle.

Distance^2 = 3^2 + 4^2 = 9 + 16 = 25

Distance = 5 km

Answer: 27.5

Step-by-step explanation:

Answer:

it will cost $475

Answer:

The (x,y) is like a mirror reflecting across the plane. When it moves it goes opposite (y,x). We move over the y axis and we get a negitive because of the negative cordinate plane.

Step-by-step explanation:

Answer:

3/8 is greater

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

it is D because you always want x to be a lone fraction and that would be the first step im 99% sure unless someone can correct me :)

Answer:

d) subtract 15 from both sides

Step-by-step explanation:

Process of elimination:

a) 2.5 and x are being multiplied, not subtracted, so (a) is wrong right off the bat.

b) you may divide 2.5 by both sides, but you want to get "x" on one side first. So you would do (b) first either.

c) to get rid of 15, which we need to somehow, we need to do the opposite operation than the one in the equation. 15 is +15, not negative, and so you would need to subtract to get rid of 15. This is why (c) is also wrong.

That leaves us, with (d), because you need to subtract 15 to isolate "x".

Answer:

58

Step-by-step explanation:

Answer:

s = 29

Step-by-step explanation:

Let's solve your equation step-by-step.

2s+30=88

Step 1: Subtract 30 from both sides.

2s+30−30=88−30

2s=58

Step 2: Divide both sides by 2.

2s

2

=

58

2

s=29

Hope this helps!

(s means shirt)

Answer:

2d+3 dollars

Step-by-step explanation:

the second one 2d+3

Answer:

37.5%

Step-by-step explanation:

24÷64=0.375

with percents, you have to move the decimal 2 spaces back

so that equals 37.5%

Answer: If you like your best friend, you should explain to him/her that you like him/her. If you don’t want to do this, then keep a close eye on them and detect whether they like you back like if they treat you with more kindness than you usually receive.

Step-by-step explanation: Activity: Give them different topics and see if they answer in a way that is different from how they would answer someone else.

Answer:

6

Step-by-step explanation:

[tex]A=\frac{h_{b} b}{2}[/tex]

Answer:

x^2-bx-20

Step-by-step explanation:

"19" will be the value which make the equation "[tex]x^2+bx-20[/tex]" factorable.

The given equation is

→ [tex]x^2+bx-20[/tex]

By putting "19" in the above equation, we can solve the equation.

→ [tex]x^2+19x-20[/tex]

By applying factorization, we get

→ [tex]x^2+20x-x-20[/tex]

By taking common, we get

→ [tex]x(x+20)-1(x+20)[/tex]

→ [tex](x+20)(x-1)[/tex]

Thus the above answer is correct.

Learn more about factorization here:

https://brainly.com/question/16853183

Answer:

7.

Step-by-step explanation:

9y+12=75

subtract 12 from 75

divide by 9y

Answer:

A

Step-by-step explanation:

42-34=8

3/4

6/8-1/8=5/8

8+5/8= 8 5/8

Answer:

A) 8 [tex]\frac{5}{8}[/tex]

Step-by-step explanation:

Answer:

m=18+n

Step-by-step explanation:

m + -18 = n            simplify

-18 + m = n            record the terms

-18 + 18 + m = 18 + n             solve

Combine like terms: -18 + 18 = 0,   0 + m = 18 + n,     m = 18 + n

Final answer: m = 18 + n

Answer:

IDK but here's what I have found.....

Step-by-step explanation:

Simplifying

m + -18 = n

Reorder the terms:

-18 + m = n

Solving

-18 + m = n

Solving for variable 'm'.

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

Add '18' to each side of the equation.

-18 + 18 + m = 18 + n

Combine like terms: -18 + 18 = 0

0 + m = 18 + n

m = 18 + n

Simplifying

m = 18 + n

Answer:

False

Step-by-step explanation:

Answer: False

Step-by-step explanation: Absolute value is the number of whole numbers the number is away from zero. So it can only be positive because you cannot have a number negative spaces away from zero

Answer:

i tryed ;-;..

Step-by-step explanation:

Answer:

If the missing side is long then it's 29 or if its short, then it's 6.4

Step-by-step explanation:

just do a^2 + b^2 = c^2 method

Answer:

23.7

Step-by-step explanation:

Answer:

XDdddDddDDDDDDDDDDDDDDDDDDD

Answer:

cant see the picture

Step-by-step explanation:

Answer:

Subtract 3

Step-by-step explanation:

Each time the following number decreases by 3

Sum of two angles that are supplementary = 180°

Then :-

[tex]3x - 2 + 2x+ 7 = 180[/tex]

[tex]5x + 5 = 180[/tex]

[tex]5x = 180 - 5[/tex]

[tex]5x = 180 - 5[/tex]

[tex]5x = 175[/tex]

[tex]x = \frac{175}{5} [/tex]

[tex]x = 35[/tex]

Which means :-

The measure of the larger angle :-

= 35 × 3 - 2

= 105 - 2

= 103°

The measure of the smaller angle :-

= 2 × 35 + 7

= 70 + 7

Therefore , the value of x = 35 and the measure of the smaller angle = 77° .

Answer:

B

Step-by-step explanation:

Answer:

x=-2

Step-by-step explanation:

Divide 14 by -7, then plug in the result(-2) in place of x.  Run this new equation(-7*-2=14) through your calculator to be sure it's correct.

Answer:

The first one.

Step-by-step explanation:

The line has a positive slope, so as x reaches infinity, f(x) will also reach infinity, and the same with negative. Hope this helps!

Answer:

A) $0.45 per oz

B) $3.51

Step-by-step explanation:

4.14/9.2 = 0.45

0.45 x 7.8 = 3.51

Answer:

Ok so 25$ for an adult. there are x adults so x times 25 is equals to $25x

13 dollars per child and y children so $13y

$20 for each pensioner and p pensioners so $20p

when adding these notice that none of the variable(latters) are the same so n adding will take place leaving the answer

$25x + $13y + $20p

a) $25x

b) $13y

c) $20p

d) $25x + $13y + $20p

Answer:

a) $25x, this is because if there are x number of adults coming, and $25 is the per adult charge, then irrespective of the number of adults coming this will be the equation. Eg : x = 5 So, $25 * 5 = $125

b) $13y, this is because if there are y number of children coming, and $13 is the per child charge, then irrespective of the number of children coming this will be the equation. Eg : y = 4 So, $13 * 4 = $52

c) $20p , this is because if there are x number of pensioners coming, and $20 is the per pensioner charge, then irrespective of the number of pensioner  coming this will be the equation. Eg : p = 2 So, $20 * 2 = $40

d) so, the total will be, = $25x + $13y + $20p

If my answer helped, kindly mark me as the brainliest!!

Thanks!!

Answer:

Distance=y•x

Step-by-step explanation:

You need to multiply the time by the distance to get the total distance e oer hour

Answer:

d

Step-by-step explanation:

cause 9-2 is 7 so your answer is d