Rate is ratio that compares two quantities of different units.
What is rate?A rate is a special ratio in which the two terms are in different units. Rate can also be defined as the ratio between two quantities of different units
For example, velocity is an example of rate, because it defined by the ratio of distance covered and time.
The unit of distance is metres and the unit of time is second. Therefore ;
velocity = distance /time. Therefore velocity is a rate.
Another example is ; Ade eat 5 mangoes for 20 days. The rate at which Ade eat is
1 day = 5/20
= 1/4 mangoes. This means Ade eats 1/4 mangoes per day.
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Which choice lists the numbers in increasing order?
Answer:
D
Step-by-step explanation:
Because negative is smaller than fractions. and ABC, is all off.
Answer: I think the answer is D/ the last answer
Step-by-step explanation:
If the pattern indicated below continued, what would be the total number of cubes in the 8th stage of the pattern?
1, 1+4=5, 1+4+9=14
Answer:
The number of cubes in the 8th stage of the pattern is 204
Step-by-step explanation:
Here, we want to calculate simply the 8th term of the pattern
T1 = 1
T2 = 1 + 4 = 1 + 2^2 = 5
T3 = T2 + 3^3 = 5 + 9 = 14
T4 = T3 + 4^2 = 14 + 16 = 30
T5 = T4 + 5^2 = 30 + 25 = 55
T6 = T5 + 6^2 = 55 + 36 = 91
T7 = T6 + 7^2 = 91 + 49 = 140
T8 = T7 + 8^2 = 140 + 64 = 204
Solve for x in the following equation:
kx = m + nx
Answer:
x=[tex]\frac{m}{k-n}[/tex]
Step-by-step explanation:
First you subtract nx from both side getting kx-nx=m.
Then you factor out x getting x(k-n)=m
and now you divide both sides from (k-n) and you will get the answer.
2(x+y)=3(y-1)
If y=5 in the equation above, what is x?
Answer:
X=1
Step-by-step explanation:
2(X+5)=3(5-1)
2x+10=3*4
2x=12-10
2x=2
X=2÷2
X=1
blueberries cost $4.00 per pound.A how many pounds can you buy for $1.00? so i took half of 4 which is 2 and i said it was 2 pounds and i dont know if its right
Answer: 1 /4 of a pound
Step-by-step explanation:
Since 1 pound = 4.00$, 1.00$ would equal 1/4 of a pound.
How did I solve this? I divided 4$ by 4 and got 1 then divided 1 pound by 4 and got 0.25 or 1/4
2 would not be right because you would be paying for 2 pounds which is 8 dollars, not 1.
Hope this helps! if it did could I have a Brainly? Thx! :3
This shape is a polygon.
O True
O False
TRIGONOMETRY ANSWER FAST PLS!!!
Answer:
which class question is this
Select the equivalent expression.
1/3 = ?
Answer:
A. 3^-1
Step-by-step explanation:
1/3 turned into a decimal is .33 (Repeating). Let's find which answer can repeat the same way.
A. 3^-1 = .33
B. (-1)^3 = -1
C. (-3)1 = -3
I am assuming you do not need work shown. I have used a calculator for this one.
Which of these graphs represents a function?
A. W
B. X
C. Y
D. Z
Answer:
Y
Step-by-step explanation:
Jenny is organising a party,
She buys some paper plates and some plastic cups.
Paper plates are sold in packs.
There are 25 plates in a pack,
Each pack costs 78p.
Plastic cups are sold in packs.
There are 35 cups in a pack.
Each pack costs £1.10
Jenny buys exactly the same number of plates and cups.
What is the least amount of money she pays?
5 Marks
3/10 divided by -1/3
Answer:
3/10 divided by 1/3= 0.9
Step-by-step explanation:
I need help with this
Answer:
Im gonna have to say A.
Step-by-step explanation:
Because if you look at the pair triangles in A. The sides are not equal according to the hash marks.
I need help with this question
Answer:53km/h
Step-by-step explanation:
you divide 424 by 8 in order to find the unit rate or the amount of kilometers per hour
Which of the following is a rational number?
A) v15
B) v16
C) v17
D) v18
(the v is supposed to be the square root sign)
Answer:
B. √16=4
Step-by-step explanation:
Pls help Question is below.
i got 2.7 by dividing 12.15 by 4.5 but im not 100% sure if thats it
Denise earns $30 an hour. She works 40 hours per week. Denise would like to purchase a computer that costs $2000. Create and solve an inequality in order to determine the least amount of hours she must work in order to be able to purchase the computer?
Answer:
67hours hoursStep-by-step explanation:
Given
she works $30 for 1 hour
in 40 hours she will earn 40*30= $1200
this means that a week she earns $1200
let the number of weeks she needs to work be x
40x*(30)<=2000
1200x<=2000
x<=2000/1200
x<=1.66
the number of hours in a week is 40
40*1.66=66.66
67hours
hence she must work for at least 67hours
solve 2 - v = - (v - 2)
Answer:
All real numbers
Step-by-step explanation:
Answer:
0=0
Step-by-step explanation:
2-v=-(v-2)
2-v=-v+2
-v+v=2-2
0=0
-7-2x=7(x+8)
What is the answer for this expression
Answer:
x=-7
Step-by-step explanation:
1. Distribute the 7 into the parenthesis: -7-2x=7x+56
2. Combine like terms by doing the opposite operation to the numbers: -7=9x+56 (added 2x to 7x)
3. Subtract 56 to each side of the equation: -63=9x
4. To isolate the variable "x," divide each side by 9: x=-7
I need help fast ! What is the slope of y=-x+7
Answer:
-1 this equation is in slope intercept for y=mx+b. the slope is variable m, which in this case is -1. the one is always invisible in front of variable
Find the x-coordinate of Q' after Q(-2.5) was reflected over the line y = -x + 4.
Answer:
Q' would be (5, 6)
The value of x varies directly with y, and when x= 2/3, y=6. Find the value of y when x = 10 1/3
See the image above for explanation.
All done!
Solved!
:-)
When x= ([tex]10\frac{1}{3}[/tex]) the value of y is 93.
What is proportion?In general, the term "proportion" refers to a part, share, or amount that is compared to a total.
According to the concept of proportion, two ratios are in proportion when they are equal.
Two ratios or fractions are equal when an equation or a declaration to that effect is utilised.
A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.
Given:
when x= 2/3, y=6.
Using constant proportionality
y = kx
k= y/x
k = 6 / (2/3)
k = 6 x 3/2
k = 9
Now, k= y/x
9 = y/ ([tex]10\frac{1}{3}[/tex])
9 = y / (31/ 3)
y = 9 x 31/3
y = 93
Hence, the value of y is 93.
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evaluate f(z) for z=7
Jenny has $2.40 deducted from her monthly allowance every time she forgets to do a chore.
If she forgets three times in one month, what will be the change in Jenny’s total allowance?
Can someone help please!!!
Answer:
$7.20
hope this helps
15(t+2)+9t=6 Please help!
Answer:
t = -1
Step-by-step explanation:
15(t+2)+9t=6
15t + 30 + 9t = 6
combine like terms
24t +30 = 6
subtract 30 both sides
24t = -24
t = -1
22-5(6v-1) = -63
22- 30v + 5 = -63
27 -30v = -63
subtract both sides by 27
-30v = -90
divide it by -30
v = 3
Answer:
-1
Step-by-step explanation:
15(t+2)+9t=6
15t+30+9t=6
15t+9t=6-30
24t/24=-24/24
t=-1
Insert the parenthesis to make the equality right:630÷7÷2⋅9⋅25=125
Answer:
(630 ÷ 7) ÷ (2 ⋅ 9) ⋅ 25 = 125
Step-by-step explanation:
630 ÷ 7 ÷ 2 ⋅ 9 ⋅ 25 = 125
(630 ÷ 7) ÷ (2 ⋅ 9) ⋅ 25 = 125
90 ÷ 18 ⋅ 25 = 125
5 ⋅ 25 = 125
125 = 125
5 x 2/3 in simplest form
Answer:
10/3
Step-by-step explanation:
Answer:
10/3
Step-by-step explanation:
5/1 x 2/3= 10/3
5 x 2 = 10
1 x 3 = 3
You cannot simplify 10/3.
what is the equivalent to (2 − 5)2
Answer:
-6
Step-by-step explanation:
Angle A is 12x - 37 and angle B is 7x + 15. If these angles are vertical, what is the value of x?
x=?
CAN ANYONE HELP ME PLEASEEEE????????????????????????//
Answer:
x = -439
Step-by-step explanation:
Oh, ok this one will take a while for me to type ;) breath in and breath out!
Ok so watch my steps:
1. 12[tex]x[/tex] - 37
multiply #1 by 7
1. 84x - 259
now multiply #2 by 12 and line 'em up
2. 84[tex]x[/tex] + 180
1. 84x - 259 ( -
-----------------------
x + 439 = 0
x = 0 -439
x = -439
Solve the proportion.
X over 12 (fraction) = three over four (fraction). x = ??
x2+9x+20 plz help with it
Answer:
11x + 20
Step-by-step explanation:
x2 + 9x + 20
2x + 9x + 20
11x + 20
Hope this helped!
Answer:
(x + 5)(x + 4)
Step-by-step explanation:
Assuming you require the expression to be factored
Given
x² + 9x + 20
Consider the factors of the constant term (+ 20) which sum to give the coefficient of the x- term (+ 9)
The factors are + 5 and + 4, since
5 × 4 = + 20 and 5 + 4 = + 9 , thus
x² + 9x + 20 = (x + 5)(x + 4) ← in factored form
