Answer:
6 weeks
Step-by-step explanation:
You need to write an equation for each.
For Andre, he has 100 dollars, and every week gets 5 dollars more. You add the 5 dollars, and Since you don't know how many weeks it has been, use a variable.
For Elena, she has 10 dollars, and gets 20 each week.
Now that you know that it has been 4 weeks, you can plug in 4 for the variable for weeks.
Andrew:100+5(4)=100+20+120
Elena: 10+20(4)=10+80=90
Andrew has more money in this time.
To find when they have the same amount, equal their expressions to each other. This means that they will have the same amount (because they are equalled) and you can solve to find the variable, which means the weeks that they are equal at.
Bring the like terms to each side by canceling them out. Since you have positive 10, then subtract 10 to each side. You have 5w, so subtract 5w to each side.
100+5w=10+20w
90+5w=20w
90=15w
90 divided by 15=6
w=6
Which equation is NOT equivalent to p- 7 = 22? Select all that apply.
A. p-p-7 = 22-p
B. p-7-p = 22 -
C. p - 7 + 22 = 22 - 7
O
D. p - 7 + 7 = 22 - 22
Ep-7 + 7 = 22 +7
Answer:
c and d
Step-by-step explanation:
i hope this help
if + means × and - means ÷ and × means + and ÷ means - find 6÷8-2+5×20=
Answer: C. 6
Step-by-step explanation:
Rephrase the expression
6÷8-2+5×20
6-8÷2×5+20
Do division
6-4×5+20
Do multiplication
6-20+20
Do subtraction
-14+20
Do addition
6
Hope this helps!! :)
Please let me know if you have any questions
Answer:
(C) 6
Step-by-step explanation:
Have a great day
Mrs. Neville is baking five batches of cookies. She will need 2 \frac{1}{2} 2 1 cups of flour for each batch of cookies. If she begins with a 20 cup bag of flour, what is the resulting change in the amount of flour in the bag?
Answer:
12.5 cups used
7.5 cups left
Step-by-step explanation:
Number of batches = 5
Cups of flour per batch = 2 1/2 cups
Initial amount of flour = 20 cup bag
After 5 batches ; number of cup used :
5 * 2 1/2 = 12.5 cups of flour
Change in amount of flour in bag :
(20 cups - 12.5 cups) = 7.5 cups
solve this problem plss
-2 x < 12
Answer:
x<14
Step-by-step explanation:
PLEASE HELP ME I WILL DO ANYTHING!!!
Answer:
x=11
Step-by-step explanation:
the angles shown are supplementary so they will add up to equal 180 so we write the equation 180=5x+10x+15 and solve for x
step 1 combine like terms
180=15x+15
step 2 subtract each side by 15
165=15x
step 3 divide each side by 15
x=11
this is so confusing someone please help me out
[tex] \huge \purple{\tt{Answer:}} [/tex]
step 1 is wrong . The 1st step should be 15² - 9² = c² .
Answer: step A
Step-by-step explanation:
The Pythagorean theorem is a^2+b^2=c^2, where c is always the hypotenuse (the longest side of the triangle). Step A is written as 9^2(thats the a value squared)+15^2(which is the hypotenuse value squared)=c^2. It should be: 9^2+b^2=15^2
(urgent please help!!!!)in computing the mean of 8 numbers, a student mistakenly used 17 instead of 25 as one of the numbers and obtained 20 as the mean. find the correct mean.
Answer: 21
Step-by-step explanation:
The student's mean of the 8 numbers is 20; the total of the numbers will be
8 x 20 = 160
If we take out the 17 the total will be 160 - 17 = 143
If we then replace the 17 with 25 the total rises to 168.
168 divided by 8 = 21
AC =
Round your answer to the nearest hundredth.
Answer:
the answer is 1.88 using cosine =adj/hyp
"Dan" uses 2/3 cup of brown sugar and 1/4 cup of white sugar to make oatmeal bars. How many cups of sugar does he use in all?
Answer:
the number of cups of sugar he use in all is [tex]\frac{11}{12}[/tex]
Step-by-step explanation:
The number of cups does he use in all as follows:
= Brown sugar + white sugar
[tex]= \frac{2}{3} + \frac{1}{4}\\\\= \frac{8 + 3}{12} \\\\= \frac{11}{12}[/tex]
Hence, the number of cups of sugar he use in all is [tex]\frac{11}{12}[/tex]
Place the relative frequencies in their correct spots on the tables. Round your answers to the nearest hundredth.
Answer:
I can't place them it is a picture
Step-by-step explanation:
I multiply three positive integers that are greater than 1 and get 333. Find one of the numbers.
those who answer first will be marked brainliest !
Answer: 3, 37
Step-by-step explanation:
Divide by 3, divide by 3 again. 37 is a prime number, so it can't be divided again after that.
Use the equation to identify a and b * a = 1/5 and b = 3 a = 3 and b = 1/5 a= 1/5 and b =1 a = 1 and b = 3
Answer:
[tex]a = 3[/tex]
[tex]b = \frac{1}{5}[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 3(\frac{1}{5})^x[/tex] --- Missing from the question
Required
Identify a and b
The given equation is an exponential function and the general form is:
[tex]f(x) = ab^x[/tex]
When [tex]f(x) = ab^x[/tex] is compared to [tex]f(x) = 3(\frac{1}{5})^x[/tex]
We have that: [tex]a = 3[/tex] and [tex]b = \frac{1}{5}[/tex]
can anyone help me with life?
I just need to talk to someone!
Answer:
You can talk to me
Step-by-step explanation:
Answer:
sure
Step-by-step explanation:
small brainnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Answer:
combined means to add so you are going to add anything over 1 because it says longer than 1
1 1/4 has 2 marks so you add 1 1/4 + 1 1/4 =
they have like denominators so you can add them together
1 + 1 = 2 and 1/4 + 1/4 = 2/4 which can be reduced to 1/2
so your answer is 2 1/2
which value of x satisfies the equation below? 4x-7+25
Answer: =4x+18
Step-by-step explanation:
Let's simplify step-by-step.
4x−7+25
=4x+−7+25
Combine Like Terms:
=4x+−7+25
=(4x)+(−7+25)
=4x+18
Answer:
=4x+18
HELP need more help giving brainless and 15 points
Answer:
c
Step-by-step explanation:
1 1/2 x1 1/2 x1 =2 and 1/4
2 and 1/4 x 8=18
Find the y-intercept and write as a point (x, y)
Answer:
(0,3)
Step-by-step explanation:
Answer:
The two points- (0,3) (-2,-1)
The y-intercept is (0,3)
The slope is 2
Find the sum of 0.333......and 0.444....
Answer:
0.777......
Step-by-step explanation:
0.333...... + 0.444......
= 0.777......
Hope it helps :)
Please mark my answer as the brainliest
Step-by-step explanation:
The sum of 0.333.... and 0.444... is 0.777......
karen bought 8 pounds of fruit to make 3 equal-sized fruit salads. What is the weight of each fruit salad?
Answer:
2 2/3
Step-by-step explanation:
38- Blank:_____=12c+4+3c
Answer:
38-15c-4
Step-by-step explanation:
38-x=12c+4+3c
38-x=15c+4
x=38-15c-4
I need help with this
Answer:
B
Step-by-step explanation:
It's B
3^5 = 243
so the 5th root of 243 is 3
(x^7)^(1/5) = x^(7/5)
(y^10)^(1/5) = 7 ^(10/5) = 7^2
z^(21)^(1/5) = z^(21/5)
How can you see that a reflection could work without knowing where the line of reflection is? If you get the answer right I'll paypal, venmo or cash app you $50. So drop your paypal, venmo or cash app along with your answer.
Note how going from R to S to T to U has us going counterclockwise. In contrast, going from R' to S' to T' to U' has us going the opposite direction going clockwise. This change in orientation strongly implies that a reflection has been done. Reflections always flip orientation.
-----------------------------------------
Here's how we can find the line of reflection.
Draw a line segment from point R to point R'. Mark the midpoint of the segment as point A
Repeat this process to form a segment from S to S'. Mark the midpoint as point B.
The line of reflection will pass through points A and B. This is because the line of reflection is equally distant between the original point (such as point R) and its reflected point (such as R'). This must mean that the line of reflection goes through the midpoint of segment UU' and also segment TT'.
Refer to the diagram below.
Please do at least one of them if someone already did one do the other :D
Answer:
LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right, good luck on getting the question right! because i got it right for my homework!
Step-by-step explanation:
what complex numbers graph is shown?
Answer:
D.
Step-by-step explanation:
Took the test
Consider the following equation.
x – 0.32x = 0.68x
Which of the following statements matches the mathematical equations?
Question 5 options:
a) Decrease a number by 0.32 is the same as multiplying by 0.68.
b) Decrease a number by 32% is the same as increasing by 68%.
c) Decrease a number by 0.32 is the same as multiplying by 0.32.
d) Decrease a number by 32% is the same as multiplying by 68%.
Answer:
d) Decrease a number by 32% is the same as multiplying by 68%Step-by-step explanation:
Given equation:
x - 0.32x = 0.68xOptions (4 of them given)
a) Decrease a number by 0.32 is the same as multiplying by 0.68.
x - 0.32 = 0.68x ⇒ 0.32x = 0.32Incorrectb) Decrease a number by 32% is the same as increasing by 68%.
x - 32% = x + 68% ⇒ 0 = 100%Incorrectc) Decrease a number by 0.32 is the same as multiplying by 0.32.
x - 0.32 = 0.32x ⇒ 0.68x = 0.32Incorrectd) Decrease a number by 32% is the same as multiplying by 68%
x - 32% = 0.68x ⇒ x - 0.32x = 0.68x ⇒ 0.68x = 0.68xCorrectOne month, Ruby worked 6 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 126 hours. Find the number of hours each person worked.
Answer/Step-by-step explanation:
Let x hours be the number of hours Issac worked
x+6 hours be the number of hours Ruby worked
4(x+6) hours be the number of hours Svetlana worked.
x + x + 6 + 4(x+6) = 126
x + x + 6 + 4x +24 = 126
6x +30 = 126
6x = 96
x = 16
Therefore, Issac worked 16 hours.
Ruby worked 16+6 = 22 hours
Svetlana worked 22 × 4 = 88 hours.
If helpful, please mark as brainliest! =)
Answer: Ruby: 22 hours, Isaac: 16 hours & Svetlana: 88 hours.
Step-by-step explanation:
Let's begin by assigning letters to represent our unknowns:
R (hours Ruby worked)
I (hours Isaac worked)
S (hours Svetlana worked)
Now let's see if we can express all three unknowns in terms of one unknown, according to the facts given in the problem:
R = I + 6 (Ruby worked 6 more hours than Isaac)
S = 4R (Svetlana worked 4 times more hours than Ruby)
We can see that we can express the hours Isaac worked in terms of Ruby:
R = I + 6, therefore, I = R - 6
Now we have all three unknowns expressed in terms of one unknown (R). Now we can write an equation to express the given sum of their worked hours (126) in terms of our expressions for one unknown (R):
R + (R - 6) + 4R =126
Now let's solve our equation for the value of R and then use our expressions for R to calculate the values for I and S:
R + R - 6 + 4R = 126
6R - 6 = 126
6R = 126 + 6
6R = 132
R = 132/6
R = 22 (hours Ruby worked)
I = R - 6
I = 22 - 6
I = 16 (hours Isaac worked)
S = 4R
S = 4(22)
S = 88 (hours Svetlana worked)
Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!
Answer:
13
Step-by-step explanation:
Someone help me please only 7, 8, and 9 thank you
7. 13.2 m
8. 44 in
9. 50.3 cm
A car starts moving at 9:00 am and moves at a constant speed. At what time will the car be at the distance 200 miles from the starting point, if at 9:30 it was at 20 miles from it.
. i got the answer of 2:00
Step-by-step explanation:
yea
Answer:
1:30
Step-by-step explanation:
This is correct
Find the missing lengths
Answer:
5 root 2 for both
Step-by-step explanation:
y=x= 10/root two
= 5 root 2
if my answer helps please mark as brainliest.
Answer:
x = 5*sqrt(2)
y = 5*sqrt(2)
Step-by-step explanation:
Because the triangle is a 45-45-90 triangle, 10 is equal to x * sqrt(2) and x = y.
x = 10 / sqrt(2)
When simplified:
10 / sqrt(2) = (10 * sqrt(2)) / 2 = 5 * sqrt(2)