Solve this system of equations using substitution:
y = 2r-4
x + 2y = 10
Step 1: Substitute for y in the second equation. Which is the
resulting equation?
*choice options*
2x - 4 = 10?
x + 2x - 4 = 10?
x + 2(2x - 4) = 10?
√25 + √144 +√100
who know pls
Answer:
27
Step-by-step explanation:
√ 25 is 5
√ 144 is 12
√ 100 is 10
5 + 12 + 10 = 27
Joy’s job pays $12.25 an hour. One day, she worked for 320 minutes. How much will she earn?
Answer:
about $64.8
Step-by-step explanation:
First of all, we know that there is 60 min per hour.
So we find out how many hours 320 minutes is equivelant to.
We can solve this by doing 320/60 = 5\frac{1}{3}
To find how much Joy makes, simply do $12.25 x $5\frac{1}{3} = 28
Answer: 28
Hope You Found this helpful! :)
what is an equivalent expression for 1/2 (x + 8)
You find a jacket you want to buy that has a price of $100. You have a coupon for
15% off the original price. How much did you pay for the jacket? *
Answer:
85
Step-by-step explanation:
100.00 - 15% = 85.00
If the ratio of m to n is equal to 5 then which of the following is true? (1) m=n+5 (2) m=5n (3) n==m+5 (4) n=5m
Answer:
Step-by-step explanation:
[tex]\frac{m}{n}[/tex]=5
what is true:
m=5n
Answer:
its c
Step-by-step explanation:
Solve:
7x = 84
A. x = 23
B. x = 7
C. x = 43
D. x = 12
Answer:
d
Step-by-step explanation:
Sajid put 49 apples in each of 23 baskets. How many apples did Sajid put in all the baskets?
Answer:
1127 apples
Step-by-step explanation:
49 x 23= 1127
Which statement is an example of the transitive property of congruence?
Answer:
Step-by-step explanation:
The transitive property in general says. The transitive property of congruence states that two objects that are congruent to a third object are also congruent to each other.
if a=b and b=c, then a=c
The transitive property of congruence replaces the equal sign with a congruence symbol, and replaces a, b, c with any geometric figure. Here the geometric figures used are triangles KLM, PQR, and STU.
If ΔKLM ≅ ΔPQR and ΔPQR ≅ ΔSTU, then ΔKLM ≅ ΔSTU hope this helps
Answer:
Step-by-step explanation:
If KML=PQR and PQR = STU then KML=STU because of the transitive property of congruence.
Lily sorted these solid figures into two groups. What is true about the groups
Answer:
One group is completely made of cones whilst the other has cylinders
Step-by-step explanation:
Do 5/3 and 30/18 form a proportion?
Answer:
yes
Step-by-step explanation:
5x6=30
3x6=18
I need help with this fast
Answer:
Step-by-step explanation:
g( - 4) = [tex]\sqrt[3]{- 4 + 4}[/tex] = 0
( - 4, 0)
A new health drink has 170% of the recommended daily allowance (RDA) for a certain vitamin. The RDA for this vitamin is 30mg. How many milligrams of the vitamin are in the drink?
Answer:
51 mg
Step-by-step explanation:
A new health drink has 170% of the recommended daily allowance (RDA) for a certain vitamin. The RDA for this vitamin is 30mg.
The above question is calculated as:
RDA of the vitamin × 170%
The RDA for this vitamin is 30mg
Hence:
30mg × 170%
= 51 mg
Therefore, the milligrams of the vitamin that are in the drink is 51 mg
add the two expressions 2x + 6 + 6x - 1
Answer: 2x+6+6x-1 = 8x+5
Answer:
8x+5
Step-by-step explanation:
2x+6+6x-1
1. First combines like terms (x)
8x+6-1
2. combine the other terms
8x+5
The data from a study relating to the life span of houseflies is normally distributed. The mean is 18 days and the standard deviation is 3 days
Answer:
huntombros avatar
90% of people marry their 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u
Step-by-step explanation:
Reflect
Allie and Roman are trying to graph the blue line shown
on the left. Only one of them has a correct answer.
Allie entered this equation: y = 2x - 8
Roman entered this equation: y = -2r + 8
+
Who is correct?
Allie
Roman
Answer:Step-by-step explanation:
how many solutions does the equation 3(×+2)=5×+6-2× have
Answer:
One solution
Step-by-step explanation:
I easily searched it up! :)
PLEASE ANSWER!
Leo says that the product of n/n x 4/5 is greater than 4/5 because multiplication always increases the number.
Which of the following values for n proves that Leo is incorrect?
A. 2
B. 7/6
C. 5/8
D. 5/4
E. 6/6
Answer:
D
Step-by-step explanation:
during a lunch seminar, chocolate, caramel and strawberry topping were available how many 2 topping sundaes are possible?
Answer:
There are 3 two topping sundaes possible.
Step-by-step explanation:
The order in which the toppings are chosen is not important. For example, chocolate and caramel topping is the same as a caramel and chocolate topping. So we use the combinations formula to solve this question.
Combinations Formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
How many 2 topping sundaes are possible?
2 toppings from a set of 3(chocolate, caramel and strawberry). So
[tex]C_{3,2} = \frac{3!}{2!(3-2)!} = 3[/tex]
There are 3 two topping sundaes possible.
Suppose that of all babies born in a particular hospital are girls. If babies born in the hospital are randomly selected, what is the probability that at most of them are girls
Answer:
100%
Step-by-step explanation:
If all the babies born in that hospital are girls then if randomly selected they will all be girls because there are no boys even at that hospital.
simplify. (3^5)^2/3^-2
please answer asap
The answer for (3^5)^2/3^-2 is 531441 and to convert, it becomes 3¹².
= 3*3*3*3*3*3*3*3*3*3*3*3
= 531441 or 3¹²
1/4+(2x5)
please answer
Alex paints a total of 9 dollhouses using 2 cans of paint. How many dollhouses can Alex paint with each can of paint?
2 of a hour
Alex can paint 4 and a half doll houses with each can of paint.
What is a unitary method?A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.
Given, Alex paints a total of 9 dollhouses using 2 cans of paint.
So, to obtain the no. of doll houses Alex can paint with each can of paint we'll divide the total no. of dollhouses painted by the total no. of paint cans used which is,
= (9/2) dollhouses.
= 4.5 doll houses.
learn more about the unitary method here :
https://brainly.com/question/28276953
#SPJ5
(7,-1) and (6, 6)
Determine the slope of the line passing through the points whose coordinates
Answer:
y=-7x+48 slope would be -7
Step-by-step explanation:
Used a Regression Calculator
8710÷5=?
by showing work
4,320 is divisible by?
3
9
10
Answer:
3, 9, and 10
Step-by-step explanation:
To figure out whether 4,320 is divisible by these numbers, we can use their divisibility rules to help us out.
A number is divisible by 3 or 9 if its digits add up to a number divisible by 3 or 9. The digits of 4,320 add to 4 + 3 + 2 + 0 = 9, which is divisible by both 3 and 9, so 4,320 is divisible by 3 and 9.
A number is divisible by 10 if its last digit is a 0, which we have here, so 4,320 is divisible by 10.
A service station charges $251 for four new tires and installation. If the installation portion of the bill is $84, what is the price of one tire
A museum has 7 paintings by Picasso and wants to arrange 3 of them on the same wall. How many ways are there to do this?
If 9 people come to view the 3 paintings, how many ways can they look at the paintings?
______________________________
3 × 7 / 3 ÷ 7 × 100= 21 / 42.8%There Are A Total of 21 Ways To Arrange The Paintings.______________________________
The Number of ways of arranging 3 out of 7 painting is, 35.
The Number of ways of his look to the painting is 84
Permutation and combination :It is given that,
A museum has 7 paintings by Picasso and wants to arrange 3 of them on the same wall.
We have to select 3 out of 7 and arrange it.
Number of ways of arranging 3 out of 7 painting is,
[tex]=^{7}C_{3}\\ \\=\frac{7!}{3!*4!} =\frac{7*6*5*4!}{3*2*4!}=35[/tex]
When 9 people come to view the 3 paintings,
Number of ways of his look to the painting is ,
[tex]=^{9}C_{3}\\ \\=\frac{9!}{3!*6!}=\frac{9*8*7*6!}{6*6!}=84[/tex]
Learn more about the permutation and combination here:
https://brainly.com/question/1216161
In AABC, m LACB 90°, CD I AB and m LACD -45°. Find:
Find CD, if BC = 3 in
459
B В
D
Answer:
CD = (3√2)/2 = 2.12 in.
Step-by-step explanation:
Reference angle = m<BCD = 45°
Hypotenuse = BC = 3 in.
Adjacent side = CD = ??
Apply trigonometric ratio
Cos(45) = CD/3
Multiply both sides by 3
3*Cos(45) = CD
3*√2/2 = CD (cos 45 = √2/2)
(3√2)/2 = CD
CD = (3√2)/2 = 2.12
Pls be honest I’ll mark u
Answer:
C) 10
Step-by-step explanation:
