Griffin ordered a pair of sneakers online. He had a $17 credit that he applied toward the purchase, and then he used a credit card to pay for the rest of the cost. If the shoes cost $80, how much did Griffin charge to his credit card when he bought the sneakers?
Anna has a total of 36 goldfish in her aquarium, some are orange and some are black. The number of orange goldfish is 7 more than twice the number of black goldfish. Which system of equations below can be used to describe the number of black and orange goldfish in Anna's aquarium?
Answer:
x + y = 36.....Equation 1
x = 7 + 2y...... Equation 2
Step-by-step explanation:
Let the number of:
Orange goldfish = x
Black gold fish = y
Anna has a total of 36 goldfish in her aquarium, some are orange and some are black.
x + y = 36.....Equation 1
The number of orange goldfish is 7 more than twice the number of black goldfish.
x = 7 + 2y...... Equation 2
We can rewrite this as:
x - 2y = 7..... Equation 2
The system of equations below that can be used to describe the number of black and orange goldfish in Anna's aquarium is :
x + y = 36.....Equation 1
x = 7 + 2y...... Equation 2
I think it’s
X + y= 36
X - 2y= 7
I hope this helps you have a good day
At a rental car company, a customer’s daily rental charge D (in dollars) for m miles driven is determined by the function D = 35 + 0.4m. PART B: Select the correct meaning of the y-intercept of this function.
A. The y-intercept is the amount that a customer will pay before the charge for the miles driven is added.
B. The y-intercept is the amount that a customer will pay for the miles driven.
C. The y-intercept is the total amount of money that a customer will pay.
D. The y-intercept is the corresponding y-value when the x-value is 10.
PLEASE HELP ME
Consider this right triangle.
Determine if each expression is equivalent to the length
of AC. Select Yes or No for each expression.
Yes
No
13sin(B)
13cos(A)
12tan(A)
12tan(B)
Answer:
YES, YES, NO, YES
Step-by-step explanation:
Cos angle = adj/hyp
Sin angle = oppo/hyp
Tan angle = oppo/adj
Sin B = AC /13.
AC = 13 sin B. This YES
Cos A = AC/13
AC = 13 cos A. This YES
Tan A = 12/AC
AC = 12/ tan A. This is NO
Tan B = AC /12
AC = 12 tan B. This is YES
PLEASE HELP ME !!!
Please !!!!!!
I NEED HELP ASAP plzzz ILL GIVE BRAINLIST
Find the average rate of change of the function graphed over the interval [-2, 1].
Answer:
4
Step-by-step explanation:
is the answer
mark me as brainlist
What is the slope of a line that passes through the points (8,-3) and (-2,5)
Answer:
-4/5
Step-by-step explanation:
2+2 the reason I get these hard probs is bc I am in 8th. Please help. I made it so if someone answers this very hard question you get 58 points
Answer:
hmm your answer would be 4
Step-by-step explanation:
2+2=4
Answer:
2 plus 2 is 4 because that is the answer so yeah
Can someone please explain how I do this problem?
Step-by-step explanation:
click on the number rates on the graph so basically you want to put the answer in the numbers where they said, so the y would go in the middle on 3 and 4 and the x would just go in the 3Can someone please help ( I need to graph to )
Answer:
It would take him 4 days.
Step-by-step explanation:
For graphing get your paper. the line numbers you would go by ones on the x axis and ones on the y axis. Put a dot at (0,0) the go up 1, and to the right twice. do this over and over again until you can't see any more points. then make a line with the points
Evaluating expressions - Matching Worksheet Match the expressions to their math sentence form. 1. Write the number form for the difference of 7 and n. a. 7-n b. 5 y 2. The expression for the sum of g and 34. C. 8 xt 3. The expression for the quotient of 5 and y. d. y+ 6 4. The expression for the product of 8 and t. e. 9 + 34 5. The expression for the sum of y and 6. 1 f. 9 + e 6. The expression for the difference of z and 5.
Answer:
a. 7-n
Step-by-step explanation:
1. Write the number form for the difference of 7 and n.
= 7 - n
a. 7-n
2. The expression for the sum of g and 34
= g + 34
3. The expression for the quotient of 5 and y.
= 5/y
b. 5 / y
4. The expression for the product of 8 and t.
= 8 × t
= 8t
C. 8 x t
5. The expression for the sum of y and 6
= y + 6
d. y+ 6
6. The expression for the difference of z and 5.
= z - 5
PLEASE PLEASE HELP I WILL GIVE BRAINALIST AND EXTRA POINTS
Answer:
$123 dollars is the answer bc math.
Answer
Step-by-step explanation:
please help, i would rlly appreciate it ♥️.
Answer:
4/10 and 10/25
Step-by-step explanation:
Answer:
I believe it is 4/10 and 10/25
Step-by-step explanation:
Hope this helps ;)
Sorry if I am wrong
Math loversss. PLEASE, HELP.
Answer:
I can say Now it's a positive fuction so the answer choices B and D with the negative 1 is wrong, sense Y is = 0 since the slope goes through 0
Step-by-step explanation:
My guess is Most likely A Since C The slope is going left to right which is positive
PLEASE HELP WILL GIVE BRAINLIEST!!!!
Answer:
The height of the tree is 19.81 m
Step-by-step explanation:
Trigonometric Ratios
The ratios between the sides of a right triangle are called trigonometric ratios.
If any of the acute angles is chosen as a reference, it has an adjacent side and an opposite side. The trigonometric ratios are defined upon those sides and the hypotenuse.
The image shows a right triangle with a tree and the ground forming a right angle and an elevation angle of 33°.
This angle of 33° has a side of 30.5 m as its adjacent leg and the height of the tree X as the opposite side.
The trigonometric ratio that relates both legs is the tangent:
[tex]\displaystyle \tan 33^\circ=\frac{X}{30.5}[/tex]
Solving for X
[tex]X=30.5\cdot \tan 33^\circ[/tex]
Using a calculator:
X = 19.81 m
The height of the tree is 19.81 m
You deposit $3,348 into a savings account that earns 5% simple interest each year. If you save the money for 6 years, how much interest will you have earned
find the area of the shaded region..ILL GIVE YOU BRAINLIEST !!!!!!
i dont know why my answer was removed lol it wasnt incomplete but uh anyways
24 x 30 = 720
20 x 20 = 400
720 - 400 = 320mm
answer
area = 320mm
Answer:
s
Step-by-step explanation:
Drag each expression to show whether it is equivalent to 6(c+6), 6c+6, or neither.
Answer:
it is equivalent
Step-by-step explanation:
6(c+6)
6c+6
Please help me I really need help I really need help please help me please
Answer:
p = 11m + 12Step-by-step explanation:
Initial number = 12Monthly addition = 11Required relationship:
p = 11m + 12Graph the solutions of the linear inequality −2x + 2y ≥ −4.
Answer:
Step-by-step explanation: y= x -2 i hope this helps
Please answer thank you
Answer:
0. If it's a horizontal line, then the slope if automatically 0. if the line went straight up the slope would be "no slope" or "unidentified" your problem has a horizontal line so the slope is 0
Which of the following represents the graph below? See attachment
9514 1404 393
Answer:
f(x) = (x -a)²(x -b)⁴
Step-by-step explanation:
The function shown is of even degree (both ends tend in the same direction), so choices 1 and 3 are eliminated.
The graph does not cross the x-axis at either of the zeros. This means the zeros must have even multiplicity. The only viable choice* is the second one:
[tex]f(x)=(x-a)^2(x-b)^4[/tex]
_____
* Additional comment
In practice, the curve shown will be generated by a function of the form ...
f(x) = c(x -a)²(x -b)²
where the powers of the zeros are exactly 2, not just any even number. For higher multiplicity, the curve is increasingly "flat" at the zero. For different multiplicities, the curve is asymmetrical about the y-axis. The attachment shows the shape for exponents of 2 and 4 as in this problem statement. (That is, none of the offered answer choices is correct.)
If the grid shown in the problem statement is square (same scaling in x- and y-directions), the values of a and b must be near 1, and each grid square must represent a fraction of a unit, near 1/4. In the second attachment, the grid squares are about 0.273 units each.
If 80% of the 400 students at Washington Junior High School passed the ISTEP test, how many students did not pass the ISTEP test?
Answer:
80 students
Step-by-step explanation:
400/80%=320
400-320=80
please help me its about solving system by substitution
Answer:
x = 2 and y = 5
Step-by-step explanation:
Given
x = y - 3.....i)
2x + 3y = 19.........ii)
Putting x = y - 3 in equation II)
2( y - 3 ) + 3y = 19
2y - 6 + 3y = 19
5y = 19 + 6
5y = 25
y = 25 / 5
y = 5
Now putting y = 5 in equation i)
x = 5 - 3
x = 2
Hope it will help :)❤
Зm + 4р
m=3 p= -3
will give the crown there are 16 questions left
Answer:
I would say 21 sorry if it was wrong
Step-by-step explanation:
3 x 3 is 9.
4 x 3 is 12.
9+12 is 21.
What is the equation of the line that passes through the
point (-4, 8) and has a slope of zero?
Answer:
y= 0(x)+8
Step-by-step explanation:
y=mx+b
8 = 0(-4)+b
b=8
What is 2p + 3p + 5 -10 ?
Answer:
5p-5
Step-by-step explanation:
3x - 2y = -1 ; -x + 2y = -5
Answer: 1
−x+2y=−5;3x−2y=−1
Step: Solve−x+2y=−5for x:
−x+2y=−5
−x+2y+−2y=−5+−2y(Add -2y to both sides)
−x=−2y−5
−x
−1
=
−2y−5
−1
(Divide both sides by -1)
x=2y+5
Step: Substitute2y+5forxin3x−2y=−1:
3x−2y=−1
3(2y+5)−2y=−1
4y+15=−1(Simplify both sides of the equation)
4y+15+−15=−1+−15(Add -15 to both sides)
4y=−16
4y
4
=
−16
4
(Divide both sides by 4)
y=−4
Step: Substitute−4foryinx=2y+5:
x=2y+5
x=(2)(−4)+5
x=−3(Simplify both sides of the equation)
Answer:
x=−3 and y=−4
Step-by-step explanation:
Someone help I will give u 5 points
Please help! The problem is in the picture:
Answers:
a = 8r = -15%y = 4.9 approximatelyNote: your teacher may want you to type in a positive value for r
=========================================================
Explanation:
The given equation y = 8(1-0.15)^t is in the form y = a(1+r)^t
We have a = 8 as the initial value, or what we start with.
r = -0.15 converts to -15%, so we have a decay of 15%
Plug in t = 3 to find the corresponding value of y
y = 8(1-0.15)^t
y = 8(1-0.15)^3
y = 8(0.85)^3
y = 8(0.614125)
y = 4.913
y = 4.9
Answer:
a = 8
r = 85%
y = 4.913
Step-by-step explanation:
For a, the exponential decay function is y=a*r^t. In order to find the initial amount, you are solving for when t = 0 or, y(0). Thus, t, or time, is 0. Solve the equation with time of 0.
y = 8(1-0.15)^0 = 8*1 (anything to the 0 power equals 1)
a = 8 is the initial amount
In order to solve for r, you need to solve (1 - 0.15) = 0.85. Now, multiply by 100 to get the percent 100 * 0.85 = 85%
Lastly, when t = 3 solve the equation filling in the exponent, t with 3 like below:
y = 8(1-0.15)^3 (PEMDAS; parenthesis and exponents first)
y = 8(0.85)^3 = 8*(0.614125)
y = 4.913