Answer:
chemistry textbooks:177
physics textbooks:237
Step-by-step explanation:
414-60=354
354/2=177
177+60=237
Portia worked 2 part-time jobs and earned $233.00 for working a total of 26 hours at both jobs. She is paid $7.00 per hour at job A and $10.00 per hour at job B. How many hours did Portia work at job A?
PLEASE HELP!!!!!!
Answer:
9 hours for job A, 17 hours for job B please brainliest :>
Step-by-step explanation:
A+B = 26
7A+10B = 233
A = 9
B = 17
Heyyyy!
Here's your answer!
She worked 14 hours at Job A and worked 12 hours at Job B
Step-by-step explanation:
14 × 6.40 = 89.60 and 12 × 7 = 84
84 + 89.60 = 173.60
Hoped I helped!
Gary bikes 3.275 kilometers.
Melissa bikes 3.24 kilometers.
Who bikes farther to get to school?
Answer:
Gary bikes farther to get to school
What is the slope of the line that passes through the points (5, 1) and (2, -7)?
Answer:
m [ slope ] = 8/3
Step-by-step explanation:
What is the slope of the line that passes through the points (5, 1) and (2, -7)?
m = ∆y / ∆x
m = y₂ – y₁ / x₂ – x₁
| (5, 1) → (x₁, y₁) | (2, -7) → (x₂, y₂) |
[each coordinate will correspond (directly go to) to the variables shown]
m = (-7) – (1) / (2) – (5)
m = -8 / -3
m = 8 / 3
This means that this line has a rise of 8 and a run of 3.
Up 8 and right 3 proportionally, it would touch the opposite corners of a plane that was 8 by 3 units.
Slope can be thought of as the steepness of a line, the greater the slope, the greater the steepness.
These points are generally known as cartesian coordinates.
____________
Once you have the slope, you can back track from one of the coordinates to find the equation of the line.
Just multiply the slope by the x of either coordinate, make it opposite, and then add that to the y of that coordinate to get b [the y-intercept; where it crosses the y axis, x is always 0]
Since (2, -7) is closer to the y axis than (5, 1) it is more convenient.
In (2, -7), 2 is the x variable and -7 is the y variable.
-mx + y = (-8/3)(2) + (-7) = -16/3 + (-21/3)
21/3 is the same as 7 [so it will have a common denominator].
-16 + -21 / 3 = -37/3 = b
Thus this line has an equation of
y = mx + b
↓ ↓
y = 8/3x – 37/3.
__________________________
Or you can refer to point slope which is what is taught:
y – y₁ = m(x – x₁).
You can tell that there are some similarities to this and the slope formula.
m = ( y₂ – y₁ / x₂ – x₁ ) →
m × ( x₂ – x₁ ) =
( y₂ – y₁ / x₂ – x₁ ) × ( x₂ – x₁ )
[multiply the denominator by both sides]
m ( x₂ – x₁ ) = y₂ – y₁
[x₂, and y₂ can just be x and y since you only need the initial coordinate and slope, because the second coordinate can be anything along that line]
m ( x – x₁ ) = y – y₁ →
y – y₁ = m(x – x₁)
[symmetric property of equality]
if a = b, b = a.
12 + (8 x (4 + 3) + 2) - 6
evaluate the expression plz help
Answer:
The answer is 64
Step-by-step explanation:
Answer:
64
Step-by-step explanation:
12 + (8 x (4 + 3) + 2) - 6
= 12 + ( 8 x 7 + 2 ) - 6
= 12 + ( 56 + 2 ) - 6
= 12 + 58 - 6
= 70 - 6
= 64
what are the base pairing rules in terms of DNA
Answer:
The rules of base pairing (or nucleotide pairing) are:
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T)
C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)
Step-by-step explanation:
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f (2) if f(x)=x+4
?????????
Answer:
if f(x)=x+4
f(2)=2+4=6 is your answer
Answer this correctly, and you'll be awarded as brainliest.
Answer:
Possible
plz give brailiest
Solve the equation -6 = -9 – 3x for x.
A. -2
B. -1
C. 0
D. 1
Answer:
Your answer is -1 or B
Step-by-step explanation:
This is your answer because
A: is Incorrect because, 3(-2)= -6 and -9 - -6 = -3
B: is Correct because 3(-1)= -3 and -9 - -3 = -6
C: is Incorrect because, 3(0)= 0 and -9 - 0 = -9
D: is Incorrect because, 3(1)= 3 and -9 - 3 = -12
Thus your answer is B!
Mrs. Mobley uses 5 cups of flour and two cups of sugar for her cookie dough. You use 10 cups of flour and 4 cups of sugar. Did you use the same ratio of
flour and sugar as Mrs. Mobley?
Answer:
Yes
Step-by-step explanation:
5:2 is equal to 10:8
Answer:
yes
Step-by-step explanation:The ratio of mrs.mobley is 5:2
and your ratio would still be 5:2
The measures of the three interior angles of a triangle are 85°, 20°, and 75º. Determine the
measures of the three exterior angles
Answer:
The measures of the three exterior angles would be 95, 160 and 105.
find the area bounded by the curve y= 4-× and the x- axis
What is the location of the point on the number line that is ą of the way from
A = 5 to B = 23?
A. 7
B. 8
C. 10
D. 9
PLZ answer this question y-5 ≥ -15
Answer:
y (is less than or equal to) 3
Step-by-step explanation:
i hope this helps :)
The value of the inequality will be : y ≥ -10 .
Given ,
y-5 ≥ -15
Here,
y-5 ≥ -15
To solve the given inequality,
Take -5 from LHS to RHS of inequality,
y ≥ -15 + 5
y≥ -10
Thus the value of y will be equal to or greater than -10 .
Know more about inequality,
https://brainly.com/question/28984017
#SPJ6
Why did Kierra get this problem marked wrong and what should correct answer be? PLS HELP ILL MARK AS BRAINLESS
Answer:
She wasnt supposed to bring down 25. She was supposed to bring down the 2 only then the 5 after which the answer would be = 201
Step-by-step explanation:
:)
Rachel’s credit card billing statement says she owes $350 for purchases last month. Her minimum monthly payment is $25. If she doesn’t have the full $350 to pay it off, but has more than the $25 minimum, what should she do?
1) Pay more than the monthly payment amount.
2) Pay the $350 by using a different credit card.
3) Wait until she has the $350 before paying the credit card bill even though she will get a late fee.
4) Only pay the minimum payment.
Express 9 hours as a percentage of 3 days.
Step-by-step explanation:
3(days) × 24(hours) = 72(hours)
9/72 ×100 = 12.5 %
Reasoning Solve the system of linear equations using substitution. Use pencil and paper. Which
expression would be easier to substitute into the other equation, in order to solve this problem?
Explain your reasoning.
X = 3y -9
X + 3y = 2
The solution is
(Simplify your answer. Type an ordered pair.)
Answer:
Lol I’m doing the same thing
Step-by-step explanation:
I need help with all theses questions
Answer:
Step-by-step explanation:
really easy....plz help if u can..will mark
Answer:
The distributive property.
Step-by-step explanation:
The distributive property is when you distribute a number to different numbers in a parentheses. For example...
2*x would be 2x, and 2*4 would be 8.
What is the best buy?
6 shirts for $252.42
4 shirts for $116.00
5 shirts for $90
Matt and 6 of his friends went out to eat.
They decided to split the bill evenly. Each
person paid $14. What was the total bill?
Answer:
The total bill was $98.
Step-by-step explanation:
Matt and 6 of his friends = 7 people
Each person paid $14
$14 x 7 = $98 in total
PLEASEEEEE HELP WITH THIS GIVING BRAINLIEST
Answer:
Option C. Side a 1.5 inches long, side b is 2 inches long and side c is 2.5 inches long
Step-by-step explanation:
The scale factor=4:1=4/1
Scale factor=(Scale drawing)/object
4/1=6/a
4a=6
a=6/4
A=1.5 inches
4/1=8/b
4b=8
b=8/4
B= 2 inches
4/1=10/c
4c=10
c=10/4
C=2.5 inches
Therefore, side a is 1.5 inches long and side b is 2 inchea long and side c is 2.5 inches long
Answer:
C
Step-by-step explanation:
with the scale factor being 4:1 (meaning shape A is bigger then shape B by 4 times) we can divide the larger shapes dimensions by 4 to get ur answer
This is due in 6 minutes please help
Answer:
f(x)=-2x^2+32x-114
Step-by-step explanation:
Answer:
f(x) = -2x^2 + 142
Step-by-step explanation:
f(x) = -2(x - 8)^2 + 14
f(x) = -2(x)^2 - (-2)(-8)^2 + 14
f(x) = -2x^2 - (-2)(64) + 14
f(x) = -2x^2 - (-128) + 14
f(x) = -2x^2 + 128 + 14
f(x) = -2x^2 + 142
Kelly ordered birthday pencils. It cost $25 per box plus $3 for shipping. If Kelly can spend up to at most $200, what is the greatest number of boxes she can purchase?
Answer:7
Step-by-step explanation: 25 x 7 = 175 now 3 x 7 = 21 175 + 21 =196 r 4 :)
plzzzz help me i beg u this is a major test
I will even drop 50 points
Please help with this question it’s freaking me out
Answer:
20 cm²
Step-by-step explanation:
see picture. count the number of squares.
i need to know the answer
what is the absolute value of the difference in dollars between the flat fees the two companies charge
Answer:
not exactly sure what the question is asking but they are all $15 dollars apart
Step-by-step explanation:
solve the following equation
Answer: I think it is x= 3/74
Step-by-step explanation:
Answer:
x=3/74
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
20/3x=1/2x+1/4
Step 2: Subtract 1/2x from both sides.
20/3x-1/2x=1/2x+1/4-1/2x
37/6x=1/4
Step 3: Multiply both sides by 6/37.
(6/37)*(37/6x)=(6/37)*(1/4)
x=3/74
Thus, your answer will be x=3/74.