Answer:
Let
x
be the number of quarters, and
y
be the number of dimes.
x
+
y
=
100
0.25
x
+
0.10
y
=
14.05
Solve by substitution:
y
=
100
−
x
∴
0.25x + 0.10(100 - x) = 14.05#
0.25
x
+
10
−
0.10
x
=
14.05
0.15
x
+
10
=
14.05
0.15
x
=
4.05
x
=
27
Solve for
y
now:
y
+
27
=
100
y
=
100
−
27
y
=
73
Hence, Marcy has
27
quarters and
73
dimes.
Hopefully this helps!
Step-by-step explanation:
t + 8/10 = 9/10
i need the value of t please
Answer:
1/10
Step-by-step explanation:
Answer:
t = 1
Step-by-step explanation:
When you cross multiply the equation becomes:
10(t+8)=10(9)
Now, solve for t.
10(t-8) = 10(9)
10t+80= 90
-80 -80
10t÷10 = 10÷10
t = 1
Which term best describes the graph of y = x - 1
A. Increasing
B. Decreasing
C. Constant
D. Positive
A person traveling 60 feet per second is traveling how fast, in miles per hour?
Answer:21,600 feet per hour
Step-by-step explanation:
60*60=360 (multiplying the distance traveled per second by the number of seconds in a minute to get how far the person traveled in a minute)
360*60=21,600 (multiplying the distance travels in a minute by the number of minutes in an hour to find the total distance traveled in an hour)
ABCD is a parallelogram. If side AB = 5x + 7, side BC = 8x - 12, and side CD = 7x - 9, find the value of x.
Answer:
8cm
Step-by-step explanation:
AB = CD
5x+7 = 7x-9
2x = 16
Me ayudan explicándome esto o igual nose algunas respuestas
Answer:
Step-by-step explanation:Subscribe to my channel thatgirl.christinak for a giveaway
Robin baked 702 cookies.He sold them in boxes of 18. After selling all of the boxes of cookies for the same amount each, he earned $136.50.what was the cost of one box of cookies
Answer:
cost of a box is $3.5
Step-by-step explanation:
given data
sold box = 18
earned = $136.50
solution
we consider here number of boxes of cookies is x
and
for we get Tyler sold cookies box so number of boxes we divide 702 cookies among 18 is
Tyler sold = [tex]\frac{702}{18}[/tex]
Tyler sold = 39 boxes
and
now we consider here y as cost of each box of cookies,
so for cost or sale price of the cookie boxes here we divided 136.50 dollars among 39 boxes
so
cost of each box = [tex]\frac{136.5}{39}[/tex]
cost of each box = 3.5
Thus, the cost of each box was 3.5
Work bout the height of this pyramid?
Answer:
20 cm.
Step-by-step explanation:
In order to find the height, we need the volume and the base area first. We are already given the volume so we need to find the base area.
A = 18 · 5 = 90
Now that we know the base area is 90 cm², we can substitute the information into the equation to solve for the height.
V = 1/3(A)(h)
600 = 1/3(90)(h) (Given)
600 = 30h (Simplified)
20 = h (Divided 30 on both sides)
Therefore, the height is 20 cm.
When adding decimals, we must start on which side?
Answer:
you go from left to right
like this
2.34 + 5.43= 7.77
or do u mean this? (if u mean this then its right to left)
2.34
+5.43
7.77
Step-by-step explanation:
3. Find2/7-3/7 - 5/14
Answer:
-1/2 ignore this widjsnwnsisiahwndmd
Graph the function. Then, identify the domain and range of the function.
f (x) = (x + 3)^1/2+ 1
Answer:x=5
Step-by-step explanation:
Answer:
Below.
Step-by-step explanation:
The graph will begin at the point (-3, -1) and will curve to the right, passing through the y axis at (0, (1 +√3)). It will slowly rise to the right.
Domain is [-3, ∞).
Range is [1, ∞).
2. What is the equation for this line in "Slope Intercept Form" *
On a 3-week vacation to Paris, Martha's expenses for food, gifts, and accommodations was 80$ less than 3 times her airfare. If the total expenses for the trip was 2, 660, how much was her airfare
Which ordered pair would form a proportional relationship with the point graphed below?
On a coordinate plane, a line goes through points (0, 0), (10, 40) and (negative 10, negative 40).
Answer:
the answer is c
Step-by-step explanation:
HOPE THIS HELPS
Answer:
The answer is c
Step-by-step explanation:
I did the test on edge
Help I’m bad at math and need to get my grade up
.
g. When f(x) = 0, what is the value of x.
Answer: x=0
Step-by-step explanation:
PLEASE HELP!!! MATH WHIZZESSSS NEEDED!!! IT IS IN THE PITURE!!!
Answer
B. 3, 915, 700, 000
Step-by-step explanation:
You are correct.
3.9157E + 9 means that there are 9 digits after the decimal point.
hi cn i pleas have help on this question
Answer:
396 cm squared
Step-by-step explanation:
10*27=270 cm squared
9*14=126 cm squared
Answer
i think its 486cm squared
Step-by-step explanation:
9*24=216cm
10*27=270cm
216cm+270cm=486cm squared
but im exactly sure
Giving brainliest!!!!!!!!
Answer:
I'm not sure but I think it is A.
The number of Ava's coins is x. The number of Ava's coins is more than 15. so x is more than 15.
x > 15
Answer:
A
Step-by-step explanation:
Since Ava has more than X coins in her collection then 15 is the amount she used to have so
x> 15
Austin has $75 to spend on sporting goods. He wants to buy a soccer ball for $12 and spend the rest of the
money on soccer shorts. Each pair of soccer shorts costs $19. Which inequality can be used to find s, the
number of pairs of soccer shorts he can buy?
a. 12 + 195 $ 75
c. 19 + 12s < 75
b. 12 +195 2 75
d. 19 + 12s 275
Answer:
s = 3 He can only but up to 3 pairs of shorts, with 3 dollars left over.
Answer is 12 + 3s <= 75
Step-by-step explanation:
$75 - $12 = $63
$63 / $19 = $3.3157894 about 3
$3 * $19 = $57
$57 + $12 = $69
$72 - $69 = $3
A new hotel in town purchased 10 new flat screen televisions for $10,575.50 for their suites. How much did each television cost?
Answer:
1057.55
Step-by-step explanation:
10,575.50 / 10 = 1057.55
When a number is decreased by -8 and the result is -20. What is the number? THANKS you for your help
Answer:
-12
Step-by-step explanation:
To decrease by -8 is to subtract, therefore x-8= -20. When you add 8 on both sides, the answer is -12.
What is the Slope of the line given the Linear Equation y=3x -1
Answer:
The slope is 3.
Step-by-step explanation:
In the line y=3x-1, the slope would be 3.
Write an equation of the line in slope intercept form
Answer: y = x + 2 OR f(x) = x + 2
Step-by-step explanation:
Calculating slope:
Remember rise over run; when going from one point to another point, in this case from (-3, -1) to (0,2), locate the distance moved in the x and y directions. This scenario moves 3 up and 3 right, meaning a positive slope of one. However, if the line was directed left, your slope would be negative.
Finding y-intercept:
Where does the line intersect the y-axis and have a x-value of 0? This is your y-intercept --> (0,2).
Write Equation:
y = mx +b
y = 1x + 2
y = x + 2 (your final answer)
Given that
P
=
x
−
y
.
Find
P
when:
x
=
−
12
and
y
=
−
19
Answer:
P=7
Step-by-step explanation:
P=x-y
=-12-(-19)
=-12+19
=7
how do I find the area
Answer:
105cm2
Step-by-step explanation:
area= area f rectangle + area of trapezium
= (6x9)+( [tex]\frac{6+11}{2}[/tex]x6)
= 54+51
= 105 cm2
Rachel has 2/3 pound of snack mix. She eats 5/12 of the snack mix. How much of the snack mix did Rachel eat?
Answer: Racheal ate [tex]\dfrac{5}{18}[/tex] of the snack mix.
Step-by-step explanation:
Given : Rachel has [tex]\dfrac23[/tex] pound of snack mix..
If she ate [tex]\dfrac5{12}[/tex] of the snack mix.
Then, Quantity of snack mix eaten by Rachel = [tex]\dfrac5{12}\times\dfrac23[/tex]
[tex]=\dfrac56\times\dfrac13\\\\=\dfrac{5}{18}[/tex]
Hence, Racheal ate [tex]\dfrac{5}{18}[/tex] of the snack mix.
If the area of a triangle is 36 in.^2in.
2
and the base is 9 in., what is the height of the triangle?
A
72 in.
B
4 in.
C
8 in.
D
18 in.
Which expression is equivalent to 4x – 5 ?
Select all that apply.
A 7x +1 -3(2+2)
B 3x – 2 – (3 – x)
C4(2x - 1) - 2(2x - 1)
D 3(2x - 5) – 2(x – 5)
Answer:
I think it's D.........
What is the difference between the 8th square number and the 7th square number?
Determine whether the representation is proportional. y = -9x
Answer:
Yes, they are
Step-by-step explanation:
y = -9x
Here y∝ x
Where -9 is constant of proportionality
If "y" increases by factor of 2, then "x" will also increases by factor of 2. Hence, y and x are " directly proportional" to each other.