Answer:
A sandwich is $3.50 and the price of a drink is $2.50
Step-by-step explanation:
Create a system of equations where s is the price of a sandwich and d is the price of a drink:
9s + 5d = 44
15s + 7d = 70
Solve by elimination by multiplying the top equation by 7 and the bottom equation by -5, then adding them together:
63s + 35d = 308
-75s - 35d = -350
Add them together:
-12s = -42
s = 3.5
Then, plug in 3.5 as s into one of the equations to solve for d:
9s + 5d = 44
9(3.5) + 5d = 44
31.5 + 5d = 44
5d = 12.5
d = 2.5
So, a sandwich is $3.50 and the price of a drink is $2.50
Answer:
A sandwich is $3.50 and the price of a drink is $2.50
Step-by-step explanation:
Plz mark as brainliest it would be helpful
complete the table of values y = 2x + 3
Answer:
x=0 y =3x=1 y= 5x=2 y= 7Step-by-step explanation:
for first,
1. let's take x = 0then solving this we get
y=32. take x=1 then y = 53. take x= 2 then y=798 x 1/10
help me out, please.
Answer:
9 4/5
Step-by-step explanation:
Answer: 9.8
Step-by-step explanation:
Plssss helppp meeeeee
Evaluate each using the values given.
1. 6c(a+a+a); use a=1, and c=3
Answer:
54
Step-by-step explanation:
6c(3a)
c = 3
a = 1
6*3(3(1) )
6 * 9
54
Whats the missing side length answer
Susan and Kelvin each receive $100
$
100
as a gift.
Part A
Susan buys a movie ticket for $12.50
$
12.50
and 3
3
buckets of popcorn that cost $14.20
$
14.20
each with her $100
$
100
. Which statement is true?
Answer:
c
Step-by-step explanation:
A delivery truck is carrying an 8,713 lb pound load of pet food.At a weighing station the loaded truck weighs 17,200 lb. What is the weight of the empty truck?
Are these Triangle congruent? How do you know?
a. No
b. Yes, SSS
c. Yes, SAS
d. Yes, ASA
e. Yes, AAS
Answer:
c
Step-by-step explanation:
Which expression can be used to find the product of 320? (3 points)
0 (3 x 2) × (3 x 5)
(3 x 9) * (3 x 5)
(4 x 7) x (2 x 5)
(4 x 8) X (2 x 5)
Will be marked!
Answer:
( 4 x 8) x (2 x 5)
32 x 10
320
What is the range of the graphed function?
{x |1< x < 5)
{y |1 < y <5}
{x | x is a real number}
{y|y is a real number}
Answer:
Please check the explanation.
Step-by-step explanation:
Given the expression
[tex]V=\sqrt[3]{x-1}+3[/tex]
Determining the domain:
We know that the domain of a function is the set of input values for which the function is defined.
From the given graph, it is clear that the function has no undefined points nor domain constraints.
Therefore, the domain is:
{x | x is a real number}In other words:
[tex]\mathrm{Domain\:of\:}\:\sqrt[3]{x-1}+3\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<x<\infty \\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}[/tex]
Determining the range:
We know that the range of a function is the set of values of the dependent variable for which a function is defined.
It is clear from the graph that the range can be any real number.
i.e. the range is:
{y|y is a real number}
In other words,
[tex]\mathrm{Range\:of\:}\sqrt[3]{x-1}+3:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<f\left(x\right)<\infty \\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}[/tex]
Peter was told by his teacher that he needed to measure the height of the building in which his classroom was located. He backs away from the building and places a mirror on the ground between him and the wall. When he can see the top of the building in the mirror, Peter is 2 feet 9 inches away from the mirror and the mirror is 11 feet away from the wall of the building. Peter knew his eye level was exactly 5 ft 6 inches off of the ground, so he was able to calculate the height of the building. How tall is the building in feet?
Answer:
IT'S 22 JUsT FOUND OUTStep-by-step explanation:
Please hurry come on
Answer:
g(1)
Step-by-step explanation:
The y intersect is 2
y=x+2
Answer:
The rate of g(x) is 1
Step-by-step explanation:
Rate could also mean the slope.
Get two points from the graph:
(0,2) and (2,4)
m = (Y_2 - Y_1)/(X_2-X_1)
m = (4-2)/(2-0)
m = 2/2
m = 1
what is 25 rounded to the hundreds place
Answer:
0
Step-by-step explanation:
because if the number is not higher than 50, you have to round down.
Is this equation linear or non linear
Answer:
Non-linear
Step-by-step explanation:
This equation represents a reciprocal function.
You can't divide by zero so it never passes the y-axis, therefore it cannot be linear.
The graph of this equation is attached below.
I hope this helps!!
- Kay :)
Non-linear. In linear equations, you don't divide a number by x.
Please help!!! Urgent for homework
Answer: 7 and 8
Step-by-step explanation:
Square root and squared cancel out
Answer:
a=7
b=32
Step-by-step explanation:
The first one (a) is 7 because if you square a square root, you get the number inside the root. Also, technically a square root has an exponent of (1/2) so when you have a power-to-a-power (power rule of exponents) you multiply the exponents. So ([tex]7^{1/2}[/tex])^2 is 7.
For (b) you have to take it in two parts. Square the square root and you get 2. Square the 4 in front, you get 16. Multiply those two numbers (16 and 2) together and you get 32.
Edit: Check on your calculator, you get the same answers I got! :)
Last week, it rained x inches. This week, the amount of rain decreased by 5%. Which expressions represent the amount of rain that fell this week? Match all that apply to "does represent" match the rest to "does not represent".
A. g−0.05
B. g−0.05g
C. 0.95g
D. 0.05g
E. (1−0.05)g
I think the answer would be A because 5% ×100=0.05 , and in the question they have been telling us that it decreased by 5 from the last week so the equation would be g of the last week - 0.05
Which relation is not a function?
I would like help again please and thank you for your help ? If you purchase a $24 pair of shoes at a 10% discount
and a $10 belt at a 25%
discount, what is the total
Of the discounts you
receive. What is the
total price you owe,
before tax
Answer:
With the discounts, you saved a total of $4.90. You still owe $29.10.
Step-by-step explanation:
Shoes:
10% of 24 is 2.4
The shoes cost 21.60 with the 10% discount and before tax.
Belt:
25% of 10 is 2.5
The belt cost $7.50 with the 25% discount and before tax.
Total:
You still owe 29.10 for the belt and shoes before tax.
You saved $2.4 on the shoes and $2.5 on the belt (total of $4.90)
-10.2m + -9.1 + -9.1m - 5.8m
Answer:
= −25.1m − 9.1
Step-by-step explanation:
Answer:
-25.1m - 9.1
Step-by-step explanation:
A mathematics teacher wanted to see the correlation between test scores and
homework. The homework grade (x) and test grade (y) are given in the accompanying
table. Write the linear regression equation that represents this set of data, rounding
all coefficients to the nearest hundredth. Using this equation, find the projected test
grade, to the nearest integer, for a student with a homework grade of 49.
The linear regression equation that represents this set of data is Y = -12.41 + 1.15x and the projected test grade for a student with a homework grade of 49 is 44 and this can be determined by using the generalized equation of regression.
Given :
A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y) are given in the accompanying table.The generalized regression equation is given below:
Y = a + bX --- (1)
where b is given by the formula:
[tex]\rm b = \dfrac{N\sum XY-\sum X \sum Y}{N\sum X^2-(\sum X)^2}[/tex]
Now, substitute the values of the known terms in the above formula in order to determine the value of 'b'.
b = 1.15
and the formula of a is given below:
[tex]\rm a = \dfrac{\sum Y - b \sum X}{N}[/tex]
Now, substitute the values of the known terms in the above formula in order to determine the value of 'a'.
a = -12.41
Now, substitute the values of a and b in the equation (1).
Y = -12.41 + 1.15x
Now, at x = 49 the value of Y becomes:
Y = -12.41 + 1.15(49)
Y = 43.94
Y [tex]\approx[/tex] 44
For more information, refer to the link given below:
https://brainly.com/question/7656407
Alguien me ayuda porfavor
On a piece of paper, graph y< x + 1. Then determine which answer matches
the graph you drew.
Answer:
Step-by-step explanation:
Help me on this please
Answer: 4,4
Step-by-step explanation:
because just listen to me ;)
Put the steps of solving the equation in order from first to last.
2x + 1 = -1
Answer:
x = 1
Step-by-step explanation:
2x + 1 = -1
2x = -1 - 1
2x = -2
x = -2 ÷ -2
x = 1
Charlie wants to order lunch for his friends. He'll order 6 sandwiches and a $2
kid's meal for his little brother. Charlie has $32. How much can he spend on
each sandwich if they are all the same price?
Choose two answers: one for the inequality that models this situation and
one for the correct answer.
Answer:
A and C
Step-by-step explanation:
Consider the conditional statement: If M is the midpoint of line segment AB, then AB = 2AM.
a. What is the hypothesis p?
b. What is the conclusion q?
c. What is the truth value of the conditional statement if p is false and q is false? Explain your reasoning.
Answer:
Following are the solution to the given points:
Step-by-step explanation:
In point a:
The middle point of the segment AB will be the hypothesis, which is equal to M.
In point b:
The conclusion of AB = 2AM.
In point c:
If p q is incorrect, after all, M is not really the middle point of a section AB, then the inference is wrong.
There are 400 marbles in a bag. 60 of the marbles are blue. What percent of the marblesare not blue?
Answer:
80%
Step-by-step explanation:
400-60= 320
320 is 80% of 400
Brodie plans to ride his hoover board to a Xaiver's house which is 2 miles away. If the
average speed of the hoover board is 5 mph, how many minutes will it take him to get to
Xaiver's house?
Please help it’s timed
Answer:
2.5 minutes
Step-by-step explanation:
Dividing the average speed by distance will give you 2.5 which is the average speed the hoverboard goes assuming the hoverboard will travel at the same speed the answer is 2.5 minutes.
Dana needs to buy a bathroom mirror that is 5 feet wide and 7 feet long. If the mirror sells for $4.98 per square foot, what will the total cost of the mirror be
Answer 174.30
Step-by-step explanation: 35 x 4.98 is 174.3
160 is what % of 40
plz explain
Answer:
150%
Step-by-step explanation:
this is because you can make a part to whole ratio where you have x/100 (which would symbolize the percent) and 160/40 (which would symbolize the part) then, multiply 160 by 100 to get 16000 and then divide by 40 to fulfill the x. Hope this helps!