Answer:
2b + 1.5c = 500
Step-by-step explanation:
Cost per brownie = $2
Cost per cookie = $1.50
Number of brownie = b
Number of cookie = c
Luz has 2 red, 2 white, and 3 blue marbles in a cup. If she draws two marbles at random and does not replace the first
one, find the probability of a white marble and then a blue marble.
Answer:
The probability of white marble is 2/ 7
The probability of blue marble = 3/7
Step-by-steThe prop explanation:
Mrs. Dern's class is preparing to write reports on the United States. Students must draw from a box the state that they will be assigned to. When it is Jake's turn to draw, there are three western states, one southern state, five midwestern states, and some eastern states remaining in the box. If the probability of drawing an eastern state is 1/2, how many eastern states are in the box?
Answer:
9
Step-by-step explanation:
Add all the states provided which is 9 since it said 1/2 chance answer is 9
HELP PLEASEEEEEEEEO ITS EASY IF U LIKE RECTANGLESoo
Answer: 5 feet
Step-by-step explanation: I used a ruler
Plz help me!!!!! 3. &4 only!!!
Answer:
Step-by-step explanation:
3.
Note that
[tex]L_1 : 4x-y=10 \\ L_2: -2x+4y=16[/tex]
aren't parralel lines. So they are intersected in one point.
Answer: Number of solutions is ONE. The system is soluble
4.
Similarly to 3. Number of solutions is ONE. The system is soluble
HELP FAST 45 POINTS WILL GIVE BEST ANSWER BRAINLIEST
Answer:
1343.42 in³
I am sure about this answer because I had this in my syllabus last year.
Answer:
Vtotal = (vol of prism) + (1/2)(vol of cylinder)
volume of prism = 9×10×11 = 990 in^3
volume of cylinder = pi×(5in)^2×(9in)
= 225pi in^3
Therefore, the total volume is
Vtotal = 990 in^3 + (1/2)(225pi in^3)
= 1343.4 in^3
Graph the quadratic function f(x)= -2x^2-3x+2
Answer:
it would be the graph with the maximum (opening down) in the first photo with the top on the left side of the y axis
Jordan is making a wreath that uses different colors of ribbon
Answer:
Step-by-step explanation:
he needs 10 inches of each color to make the wreath
10
+ 10
+ 10
+ 10
= 40
40 inches of ribbon
help meeeeeeeee PLEASEEEEE
Answer:
Step-by-step explanation:
5 blocks in 12 minutes
1 hour = 60 minutes
60 div. by 12 = 5
5 meaning theres 5, 12 mins in an hour
so, 5 x 5 = 25
25 meaning blocks per hours
25 + 25 = 50
50 blocks in 2 hours :)
Solve it please
Please please please
Answer: x = 30
==========================================================
Explanation:
When adding three angles of any triangle, they always add up to 180
3x+2x+x = 180
6x = 180
x = 180/6
x = 30
This then means,
3x = 3*30 = 902x = 2*30 = 60This triangle is a 30-60-90 triangle.
What IS the approximate length of arc s on the circle below? Use 3.14 for T Round your answer to the nearest
tenth.
Answer:
14.1 inches
Step-by-step explanation:
The formula to be used to find the arc length is Ф = s(arc length) / r(radius)
First we rearrange the formula to find the arc length which would be s = Ф * r
This formula only works in radians so the first step is converting 135° to radians so we would do 135° * π radians/180° which would give us 3π/4
We would then multiply 3π/4 * 6 and get 18π/4, plugging that value into a calculator returns us a value of ≈ 14.137
We then round to the nearest tenth and get an answer of 14.1 inches for the arc length of the circle below
which is best represented by the following equation 55x + 75.25 = 680.25
Answer:
11
Step-by-step explanation:
680.25-75.25=605
605÷55=11
Answer:
11
Step-by-step explanation:
say something and i give brainlyest
Answer:
Its always ily, but never stwywimc
Step-by-step explanation:
Step by step exclamation please
Answer:
Expression: 48x + 120y & Area = 1,008 square feet
Step-by-step explanation:
12(4x + 10y)
multiple the 12 into 4x + 10y
12 x 4x = 48x
12 x 10y = 120y
48x + 120y
x = 6 ft
y = 4 ft
Substitite in numbers
48x + 120y
48(6) + 120(6)
Multiply
288 + 720
Add
288 + 720 = 1,008 square feet
In a survey of 1,800 people who owned a certain type of car, 810 said they would buy that type of car again. What percent of the people surveyed said they were satisfied with the car?
Answer:
10%
Step-by-step explanation:
1,800 people represent 100 % of people
810 people represent x % of people
once you line up people and percent in columns think cross multiplication
x= 810*100/1,800 = 10 %
Which point is a reflection of (-4, -3) across the y-axis?
Answer:
(4,-3)
Step-by-step explanation:
The y coordinate stays the same, and the x changes from positive to negative
PLEASE HELPPPP
Find the value of y
X+ y= 20
8x + 6y=133
PLEASE PLEASE PLEASE HELP ME
Answer:
276 .........................................
Please help me fast i need help please
. Darlene is making punch. She pours 4 quarts 2 cups of apple juice into a bowl. Then she pours 3 quarts 1 cup of grape juice into the bowl. How much juice is in the bowl now? A 1 quart 1 cup B 7 quarts 1 cup © 7 quarts 3 cups D 8 quarts 1 cup
Answer:
C. 7 quarts 3 cups
Step-by-step explanation:
First you add 4 quarts, with 3 quarts to get 7 quarts. Then, you add 1 cup with 2 cups to get 3 cups.
Step-by-step explanation:
7 quarts 3 cups..........
Through: (2/2), slope = -1/2
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
need help asappppppp
Answer:
hypotenuse
Step-by-step explanation:
Answer:
I believe it is D hypotenuse
Step-by-step explanation:
In geometry, a hypotenuse is the longest side of a right-angled triangle.
Which expression is equivalent to -51 - (-60)−51−(−60)minus, 51, minus, left parenthesis, minus, 60, right parenthesis?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
-60+(-51)−60+(−51)minus, 60, plus, left parenthesis, minus, 51, right parenthesis
(Choice B)
B
60+5160+5160, plus, 51
(Choice C)
C
51-6051−6051, minus, 60
(Choice D)
D
-51+60−51+60minus, 51, plus, 60
Answer:
it's B.
Step-by-step explanation:
Answer:
its c
Step-by-step explanation:
can someone pls help me on this one
feams.microsoft.com/_/pdf/viewer/teams/https:-21-2Fmiamidadoschools sharepoint.com - 2Fsites - 2F Section 720131254908-21 Shared20Documents-2General 21 g
2. Which of the following tables represent functions?
A. (5,0)
B. (-2,2.4)
C. (8,5)
D. (10,12)
E. (0,4)
Input
1
Output
4
2
3
3
z
Input Output
1
2 2
3
3
3
4
4
1
1
11
7. Joe was given $20 for his
$10 per week from his =
to represent this situati
Input Output
-1 2
0 2
1 3
5 3
Input Output
-4 3
0
2
2. 12
4
7
O A. S(w) = 10w - 20
O B. S(w) = 10w + 20
Your virus protection
IV
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McAfee protects
largest banks fro
hackers, and cyl
Let us protect y
OA. Il only
B. I and IV only
OC. III and IV only
D. I, III, and IV only
Accept Risk
Answer:
D
Step-by-step explanation:
Find X and Y. can someone please help me with this question, thank you
3x + 120° + x + 120° = 360°
4x + 240° = 360°
4x = 120°
x = 30°
y = 1/2 (3x - x)
y = 1/2 (90° - 30°)
y = 1/2 × 60°
y = 30°
Please help meeee!!!!!!!!!!!!!!
Answer:
c
Step-by-step explanation:
1. The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,290 kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use more electricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 153 of their customers and calculates that these customers used an average of 10,586kWh of electricity last year. Assuming that the population standard deviation is 2509kWh, is there sufficient evidence to support the power company's claim at the 0.05 level of significance? State the null and alternative hypotheses for the test.
2. The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,290 kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use more electricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 153 of their customers and calculates that these customers used an average of 10,446 kWh of electricity last year, Assuming that the population standard deviation is 2509 kWh, is there sufficient evidence to support the power company's claim at the 0.02 level of significance? Compute the value of the test statistic.
A. We reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average.
B. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company claim that the mean amount of electricity for their residents is more than the national average.
C. We reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average.
D. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average.
Answer:
Kindly check explanation for (1)
2.)
B. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company claim that the mean amount of electricity for their residents is more than the national average.
Step-by-step explanation:
1.)
H0 : μ = 10290
H0 : μ > 10290
n = 153, sample mean, xbar = 10586 ; population standard deviation, σ = 2509 ; α = 0.05
Test statistic:
(xbar - μ) ÷ (σ/√(n))
(10586 - 10290) ÷ (2509/√(153))
296 / 202.84062
Test statistic (Z) = 1.46
We obtain the Pvalue :
Decision Region :
Reject H0 ; if Pvalue < α
Pvalue from Z test statistic calculator :
Pvalue = 0.072
Pvalue > α ; Hence, we fail to reject the Null ; there isn't sufficient evidence to support the power company's claim
2.)
H0 : μ = 10290
H0 : μ > 10290
n = 153, sample mean, xbar = 10446 ; population standard deviation, σ = 2509 ; α = 0.02
Test statistic:
(xbar - μ) ÷ (σ/√(n))
(10446 - 10290) ÷ (2509/√(153))
156 / 202.84062
Test statistic (Z) = 0.769
We obtain the Pvalue :
Decision Region :
Reject H0 ; if Pvalue < α
Pvalue from Z test statistic calculator :
Pvalue = 0.221
Pvalue > α ; Hence, we fail to reject the Null ;
B. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company claim that the mean amount of electricity for their residents is more than the national average.
Layla has 29 carnival ride tickets and it takes for tickets to ride the roller coaster how many times can she ride the coaster how many tickets does she have left over
Answer:
7 times with 1 left over
Step-by-step explanation:
29/4=7
(28)
Remainder 1
Jennifer was traveling at a rate of 70 miles per hour. If she continues at this rate, how
many miles did she travel in 9 hours?
9514 1404 393
Answer:
630 miles
Step-by-step explanation:
distance = speed × time
distance = (70 mi/h)(9 h) = 630 mi
Jennifer traveled 630 miles in 9 hours.
The probability that you get to the bus stop on time is 0.25. The probability that the bus arrives on time is 0.55. What is the probability that you will get to the bus stop on time and the bus arrives on time?
Answer:
It is the case of dependent probability sl i think you need to multiply the two probabilities (not sure)