School bag _ y
book _ x
system:
y+3x=180
y+5x=270
y=180-3x (and we put that instead of 'y' in the second equation)
(180-3x)+5x=270
180+2x=270
2x=90
x=45
so one book costs $45
and school bag:
y+3×45=180
y+135=180
y=180-135
y=45
Answer:
Each book costed 45$.
Step-by-step explanation:
Let x represent the price of a school bag and y represent the price of a book.
we get the following system of equations:
x+3y=180 (equation 1)
x+5y=270 (equation 2)
using equation 1: x=180-3y
then we substitute x in equation 2 in order to find y:
180-3y+5y=270
180+2y=270
2y=270-180=90
y=90/2=45
and we know that y represents the price of a book, so each book costs 45$.
Beinggreat78, this is mostly for you. but whoever gets it right can have brainliest, but answer ASAP!
Answer:
[tex]beinggreat78~here.[/tex]
The answer is 5 : 19. I included the explanation on your other question. :-)
Answer:
5:19
Step-by-step explanation:
add all fruits you get 19
peaches to all fruits
= 5:19
Anyway why did you delete my answer?
Mark me as a brainlest please!
A scatter plot is made comparing x, the number of hours since midnight, with y, the number of lights turned on in a house. What would a point at (7,8) on the scatter plot mean?
Answer:
7 hours since midnight and 8 lights turned on.
Step-by-step explanation:
(x,y) so 7 is the x and 8 is the y.
negative fractions on the number line
On number line, the value of fraction is,
⇒ - 13/4
What is mean by Fraction?A fraction is a part of whole number, and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called fraction. It can be written as the form of p : q, which is equivalent to p / q.
Given that;
The number line is shown.
Now,
The value of number represent on number line is,
⇒ - 3.25
⇒ - 325/100
⇒ -65/20
⇒ - 13/4
Thus, On number line, the value of fraction is,
⇒ - 13/4
Learn more about the fraction visit:
https://brainly.com/question/5454147
#SPJ7
The base of a rectangular pyramid has a length of 3 inches and a width of 2 inches. The height of the pyramid is 6 inches. Find the volume of the pyramid.
Answer:
The volume is 12!
Step-by-step explanation:
Please let me know if im correct or not! but i belive i am.
Answer:
12in³
Step-by-step explanation:
V = (B * h) / 3, where B is the area of the base and h is the height.
The base is a rectangle, so it's easy to find it's area:
B = 3 * 2 = 6
Now just find the volume:
V = (6 * 6) / 3 = 36 / 3 = 12in³
In the diagram, AB, BC, CD, DE, EF, FG, GH, and HK all have lengths 4, and all angles are right angles, with the exception of the angles at D and F.
Determine the length of DF.
Answer:
5.66 length (3s.f.)
Step-by-step explanation:
[tex] \sqrt{4 {}^{2} + 4 {}^{2} } [/tex]
= 5.65685
= 5.66 (3 s.f.)
By using the Pythagorean theorem, we will see that the length of DF is 5.7 units.
How to get the length of DF?
We can make a right triangle with the sides: DE, FE, and DF.
Such that we know that:
DE = FE = 4
These two are the cathetus of the right triangle.
Then DF is the hypotenuse.
Now, remember the Pythagorean theorem, it says that the sum of the squares of the cathetus is equal to the square of the hypotenuse, then we have:
(DE)^2 + (FE)^2 = (DF)^2
4^2 + 4^2 =(DF)^2
√32 = DF = 5.7
The length of DF is 5.7 units.
If you want to learn more about right triangles, you can read:
https://brainly.com/question/2217700
A restaurant worker used 5 loaves of wheat bread and 2 loaves of rye bread to make sandwiches for an event. Write a ratio that compares the number of loaves of wheat bread.
Describe what the ratio 7:2 means in terms of the loaves of bread used for the event
Answer:
5:2 or 5 to 2 as a fraction 5/2
Step-by-step explanation:
Answer:
5:2
Step-by-step explanation:
there are 5 wheat bread and 2 rye bread loaves so 7:2 means you added 2 more loaves of wheat bread.
Cube-shaped boxes will be loaded into the cargo hold of a truck. The cargo hold of the truck is in the shape of a rectangular prism. The edges of each box measure 2.50 feet and the dimensions of the cargo hold are 7.50 feet by 15.00 feet by 7.50 feet. What is the volume, in cubic feet, of each box? (Big box volume) and (small box volume)
The Volume of cubical box is 15.625 ft³.
The Volume of Cuboidal box is 843.75 ft³
What is Volume?Volume is a term used in mathematics to describe how much three-dimensional space an item or closed surface occupies.
Given:
Cube: edge = 2.5 feet
Cuboid: l = 7.5 ft, w= 15 feet, h= 7.5 feet
So, Volume of cubical box
= l³
= 2.5³
= 15.625 ft³
and, Volume of Cuboidal box
= lwh
= 7.5 x 15 x 7.5
= 843.75 ft³
Learn more about Volume here:
https://brainly.com/question/1578538
#SPJ7
Determine the surface area of a cylinder if the diameter is 2 inches and the height is 21 inches. Round your answer to the nearest hundredth. (Use )
Answer:
heya! ^^
given ,
★ diameter of cylinder = 2 inches
[tex]\therefore \: radius = \frac{2}{2} = 1 \: inch \\ [/tex]
★ height of cylinder = 21 inches
______________________________________
[tex]surface \: area \: of \: cylinder = 2\pi \: r(r + h) \\ \\ \dashrightarrow \: 2 \times 3.14 \times 1(1 + 21) \\ \\ \dashrightarrow \: 2 \times 3.14 \times 22 \\ \\ \dashrightarrow \: 3.14 \times 44 \\ \\ \dashrightarrow \: 138.16 \: inches {}^{2} [/tex]
hope helpful :D
Calculate the difference between 33.078 and 5.3005 using significant digits
i will give brainliest
Answer:
27.778, so 5 significant digits
Step-by-step explanation:
Find the measurements
Answer:
<1=28, <2=62
Step-by-step explanation:
You know that the large triangle is 180 and there is a smaller triangle that is also 180. You are also provided an angle is 90 and another is 62.
90+62=152.
180-152=28. So, angle 1=28.
28+90=118.
180-118=62
The value of measure of angle ∠1 is,
⇒ ∠1 = 28°
And, The value of measure of angle ∠2 is,
⇒ ∠2 = 118°
What is mean by Angle?An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.
Now, For definition of angles of triangles;
We get;
⇒ 62° + 90° + ∠1 = 180°
⇒ 152° + ∠ 1 = 180°
⇒ ∠ 1 = 180° - 152°
⇒ ∠1 = 28°
And, Sum of two interior angles of triangle is equal to an exterior angle of triangle.
Hence, We get;
⇒ ∠2 = ∠1 + 90°
⇒ ∠2 = 28° + 90°
⇒ ∠2 = 118°
Thus, The value of measure of angle ∠1 is,
⇒ ∠1 = 28°
And, The value of measure of angle ∠2 is,
⇒ ∠2 = 118°
Learn more about the angle visit:;
https://brainly.com/question/25716982
#SPJ7
I'm stuck T^T please help me!
Answer:
a. 52%
b. 56%
Step-by-step explanation:
a. 43+87=130
130/250×100
=52
b. 87+53=140
140/250×100
=56%
The height of a football is given by the function h of t equals negative16 t squared plus 56 t plus 3, where h of t is the height of the football in feet and t is the time in seconds after the ball is punted.
What is the height of the football 3 seconds after it has been punted?
Answer:
27 feet.
Step-by-step explanation:
Graph the quadratic equation, then find the point on the graph which aligns with x=3. Y would equal 27.
Complete the net worth statement. What is the net worth of the individual?
Answer:
hard question you got there
Step-by-step explanation:
Beinggreat78, Answer fast!
Answer:
[tex]I~am~here![/tex]
5:14
This is the simplest form of all the fruits added together, being compared to peaches.
The speed of 10 cars on a certain highway stretch was recorded below. If the mean of the data is 63.2 with a standard deviation of 6.2, circle all data values with a z-score less than 0.5.
{49, 58, 60, 63, 64, 64, 65, 67, 70, 72}
Answer: 58
Step-by-step explanation:
Ricardo has a $50 gift card for an electronics store. He also has a coupon good for $10 off his purchase. Let "x" represent the amount of merchandise Ricardo can buy from the store using his gift card and coupon. Graph the solution set for "x" on the number line.
Answer:
its the first option on the paper
allie went trick - or - treating one day. she wanted to dress up as a princess but her costume costs $340. she only as $119. how much money does allie need for her costume?
my sister needs help.....ughhhh shess soo annoyinggggg like dam
Answer:
459
Step-by-step explanation:
340+119=459
Answer:
221
Step-by-step explanation: 340-119 is 221
You select 32 marbles from a bag. The results are as follows: 6 blue marbles, 5 green marbles, 4 red marbles, 8 white marbles, and 9 yellow marbles. Find P(not green).
Answer:
19%, 13% 25% 28%
Step-by-step explanation:
6/32=
19%
5/32=
16%
4/34=
13%
8/32=
25%
9/32=
28%
What number does 10 need to be divided by to make 5?
Answer:
2
Step-by-step explanation:
We can put this into an equation:
10/x=5
first, we multiply x on both sides:
10=5x
and then we divide by 5 on both:
2=x
so the answer is 2
Answer:
2
Step-by-step explanation:
10 divided by 5 equals 2. If you have trouble doing this you can multiply with your calculator to find the answer. Or even divide with a calculator!
Hope this helps :)
Have a great day and enjoy your assignments!
<3 sun
Find the surface area, in square inches, of a cube whose volume is 8 in³.
Answer:
24 in^2
Step-by-step explanation:
common math
Answer:
Surface area of cube is 24 in²Step-by-step explanation:
In this question we have given volume of cube that is 8 in³. But we know that volume of cube is a³. So ,
[tex] \implies \: a {}^{3} = 8[/tex]
Now ,
[tex] \implies \: a = \sqrt[3]{8} [/tex]
So , cube root of 8 is ,
[tex] \implies \: \boxed{\bold{a = 2}}[/tex]
Therefore, value of a is 2 inches .Now , we are finding surface area of cube . We know that surface area of cube is 6a² . So ,
6 ( 2 )²6 ( 4 )24[tex] \pink{ \boxed{ Therefore, \: surface \: area \: of \: cube \: is \: 24 \: in ^{2} }}[/tex]
#Keep LearningThe question is in the Screenshot so as to answer options.
Answer:
option C
i hope it is correct
Find the value of n.
Suppose the value 60 is added to the data set.
ANSWER PLS ples ples
Answer:
if this is area than
1- 55
2- 28
3- 48
4- 84
Step-by-step explanation:
#1 Please answer, i'm timed (EDGE 2022)
The answer is B) [tex]2(\frac{2}{5}x+2) =\frac{4}{5}x+4[/tex]
If it is incorrect it should be D) [tex]2(\frac{2}{5}x+4)=2\frac{2}{5} x+8[/tex]
Answer this asap please
Answer:
p x 7 = d
Step-by-step explanation:
If the If the amount of meat is 3 and the cost is 21 in dollars you divide 21 by 3 and the answer is 7 and to see if the answer is 7 for the rest of the questions divide 35 by 5 that equals to 7 same thing with 49 divided by 7 that equals to 7.
PLS HURRY GIVING BRAINLIEST
(05.02)Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the area of the mainsail in order to buy the correct amount of material. Calculate the area of the parallelogram to determine how much material should be purchased. Be sure to explain how to decompose this shape into rectangles and triangles. Describe their dimensions and show your work. Parallelogram with base of 15 feet, height of 10 feet, and triangular base of 2 feet.
Answer:
150Ft^2
Step-by-step explanation:
The area of a parallelogram is A=BH where B is base length and H is height. I'm not sure why there is information about a triangular base, maybe an illustration would help. But with the information provided, the base times height is equal to 150 Ft^2. Check out the Kahn Academy video for a better explanation
1. HELP ASAP!!! GIVING BRAINLIEST!!!
Find each missing measure for both problems.
Answer:
Step-by-step explanation:
Q1
x+68+41=180
x+109=180
x=180-109
x=71
Q2
x+47+16=180
x+63=180
x=180-63
x=117
math, help needed pls
Find the measure of the central angle you would draw to represent apple juice in a circle graph.
a) 90 degrees
b) 54 degrees
c) 144 degrees
d) 30 degrees
