Step-by-step explanation:
6+ -4=2
-8-(10) = 2
-7 + 3= - 4
The high temperatures, in degrees Fahrenheit, of 10 U.S. Cities during a day in October are listed below. 72, 50, 54, 66, 58, 79, 54, 99, 40, 68 What is the range of the temperatures? A. 54°F B. 59°F C. 62°F D. 64°F
Answer: B. 59°F
Step-by-step explanation:
Range = Maximum - MInimum.
From the given temperatures, Maximum temperature = 99 degrees Fahrenheit
Minimum temperature = 40 degrees Fahrenheit
Range = Maximum temperature - Minimum temperature
i.e. Range =99-40 = 59 degrees Fahrenheit
Hence, the range of the temperatures = 59°F i.e. B is the correct option.
What is the solution to the equation (2 – 2) + 22 – 4 = 9?
Answer:18
Step-by-step explanation:2−2+22−4=9
18≠9
Please give me the correct answer
Can some one help pls!!!
Answer:
Slope= 2x y-intercept: 2Slope= -x y-intercept: 8Slope= -4x y-intercept: 12 Give brainlistAccordingly to the Internet which knows everything a good rule of thumb is to plan for 5 to 10% waste when buying carpet how did the estimate to do
Answer:
Not bad
Step-by-step explanation:
According to the internet, there are a number of factors to consider before estimating your waste percentage when buying carpets.
You may have to check the shape of your room, if it has multiple walls or if it is just complicated. For this kind you can estimate a 20% waste factor.
But for uncomplicated rooms having the same width as the carpet, the rule of thumb is to add a 10% waste factor to the square footage area.
.069 rounded to the nearest hundredth
Answer:
I believe the answer is 0.07! I hope that helps
0.069 rounded off to the nearest hundredth is 0.69.
Dana buys a new computer that cost $675. Sales tax is 7%. What is the total cost?
Answer:
722.25
Step-by-step explanation:
675x1.07
1 would be 675. Since there is a 7 percent sales tax, it would be 107 percent of the cost.
Answer:
$722.25
Step-by-step explanation:
LOTS OF POINTS, PLEASE ANSWER
Train A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train A heading towards station A, and train B heading towards station B. Train A reaches station A after 4 h. Train B reaches station B after 3 1/2 h. Station A and Station B are 562.5 mi apart.
What are the rates of the trains?
Answer:
since the rate is the same for both trains, and we know that the distance train A travels plus the distance train B travels equals 562.5 miles, we can use the D(istance) = R(ate) * T(ime) formula to solve this.
Train A:
da = R * 4
Train B:
db = R * 3.5 (using 3.5 instead of 3 and 1/2)
Solve for R:
R * 4 + R * 3.5 = 562.5
7.5 * R = 562.5
R = 75
The trains are traveling at 75 miles per hour.
Step-by-step explanation:
Answer:
speed = distance / time
since they are moving in opposite direction, the time is the sum of the two times = 2 1/2 + 4 = 6 1/2 = 13/2
speed = 585/(13/2) = 90 miles per hour.
Step-by-step explanation:
I hope it helps.
A company is billed $1,850 with a cash discount of 5% offered for payment within ten days. How much could it save?
Answer:
$92.5
Step-by-step explanation:
1,8500x.05=92.5
Answer:
1850 / 5% = 36000
Step-by-step explanation:
PLEASE HELP!!
f(x) = -x2 + x + 6
a=
b =
c=
HELLLLPPPPP, will make brainiest :)
Answer:
no
Step-by-step explanation:
the area of the whole box is 17,280 cubic units because 24x24x30=17,280. If each cubic unit is .004 lbs then multiply 17,280 by .004. And it equals 69.12 lbs. And 69 is bigger than 30, so no he cant lift it.
Strawberries cost $3.60 per pound. You buy a bag that costs $7.20. How many pounds of strawberries are in the bag?
3.60 per pound
7.20 divided by 3.60 = 2
there are two pounds of strawberries in the bag!
Which expression is equivalent to:
3a + 33
3(a + 33)
7a + 27 - 4a + 6
-3 (a + 11)
O 5a + 29 - 2a + 3
Answer:
It's 3 (a + 11)
Step-by-step explanation:
I don't know if you said that the 3 was a negative but if you did then don't choose my answer.
Answer:
The answer is 3(a+11)
Step-by-step explanation:
Lowest common multiple of 28 and 144
Answer:
Lowest Common multiple -(L.C.M) is 1008.Step-by-step explanation:
2 ¦ 28, 1442 ¦ 14, 72 ¦ 7, 362×2×7×36 = 1008(L.C.M) =1008─━─━─━─━─━─━─━─━─━─━─━─
L.C.M = Lowest Common MultipleSimplify -5(-3w - 5) - 20
Write 14 more then a number (pre algebra)
Answer:
14+n
Step-by-step explanation:
14 more means we are adding and a number means we dont have an specific number so we substitute with n
Hope this helps (:
Answer:
x+14
Step-by-step explanation:
hope it helps!
find the area of the isocele triangle formed by the points of intersection of parabolas y=-x^2+9 and y=2x^2-3 and the origin
Answer:
[tex]10\ \text{sq. units}[/tex]
Step-by-step explanation:
The parabola's are
[tex]y=-x^2+9[/tex]
[tex]y=2x^2-3[/tex]
So
[tex]-x^2+9=2x^2-3\\\Rightarrow 12=3x^2\\\Rightarrow \\\Rightarrow x=\sqrt{\dfrac{12}{3}}\\\Rightarrow x=\pm 2[/tex]
[tex]y=-x^2+9=-(2)^2+9\\\Rightarrow y=5[/tex]
[tex]y=-(-2)^2+9=5[/tex]
So, the points at which the parabola's intersect each other is [tex](2,5)[/tex] and [tex](-2,5)[/tex]
The three points of the triangle are [tex](2,5)[/tex], [tex](-2,5)[/tex] and [tex](0,0)[/tex]
Area of a triangle is given by
[tex]A=\dfrac{1}{2}[x_1(y_2-y_3) + x_2(y_3-y_1) + x_3(y_1-y_2)]\\\Rightarrow A=\dfrac{1}{2}[2(5-0)+(-2)(0-5)+0(5-5)]\\\Rightarrow A=10\ \text{sq. units}[/tex]
Area of the triangle formed is [tex]10\ \text{sq. units}[/tex].
D(-1,4) and E (3,-2),
Answer:
(1,1)
Step-by-step explanation:
With the midpoint formula, we're basically finding the average of the two variables, x and y.
Formula: [tex](\frac{x_{1} + {x_2} }{2}, \frac{_{1} + {y_2} }{2} )[/tex]
[tex](\frac{{-1} + {3}}{2} , \frac{{-2} + {4}}{2} )[/tex]
[tex](\frac{2}{2}, \frac{2}{2})[/tex]
(1,1)
Please help me! 7th grade science!
A girl uses 60j of energy to move a box from the floor to a shelf. How much power does she use if it takes her 3 seconds to move the box?
15watts
20watts
90watts
180watts
Answer:
The answer is 20 watts
Step-by-step explanation:
power=joules/seconds
60/3=20
5. Simplify the expression 4a - 5b - 6 + 3b - 4a.
T
Answer:
-2b - 6
Step-by-step explanation:
Answer:
Step-by-step explanation:
4a -5b -6 +3b -4a = 4a-4a + 3b-5b -6 = -2b-6
what’s the solution
y = 8x – 2
y = 9x - 7
Answer:
The answer is (5, 38)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
~Hoped this helped~
Answer:
(5,38)
Step-by-step explanation:
Translate this sentence into an equation. The product of Rita's savings and 9 is 153. Use the variable r to represent Rita's savings
How would I solve this? I’m so confused
The equation of the line graphed below is _____. Do not include spaces in your answer.
Answer:
X=5
Step-by-step explanation:
In ΔEFG, f = 42 inches, e = 39 inches and ∠E=43°. Find all possible values of ∠F, to the nearest degree.\
Answer:
The angle F = 47.25°
Step-by-step explanation:
Step(i):-
Given that f =42inches and e = 39 inches
Given that ∠E = 43°
By using sine rule
[tex]\frac{a}{sinA} = \frac{b}{sinB} = \frac{C}{sinC} = 2R[/tex]
[tex]\frac{e}{sinE} = \frac{f}{sinF}[/tex]
⇒ [tex]\frac{39}{sin43} = \frac{42}{sinF}[/tex]
Cross multiplication , we get
⇒ 39 sin F = 42 × sin 43°
[tex]sin F = \frac{42 X 0.68199}{39}[/tex]
⇒ sin F = 0.734459
Step(ii):-
⇒ sin⁻¹ (sin F)= sin ⁻¹ ( 0.734459)
⇒ F = 47.25
The angle F = 47.25°
about how long would it take Vicky to read 25 pages? Explain.
Answer:
so i do not have that many resources like how fast she can read, how many pages there are, and how many words are on the page
Step-by-step explanation:
if she is and older person than i can say 25 pages in 13 or 14 minutes but if she is younger than i can say 20 or 22 minutes i hope this helps with your problem
can you help me with this please
Answer:
slope is 4/3 y intercept is -3
Step-by-step explanation:
there is no calculations needed
After a few mathletes join the team, the team is able to solve 40% more problems per session. Of the team can solve 42 problems per session now, how many problem were they able to solve before the new mathletes joined? (Please EXPLAIN how you got it ;)
Answer:
30 problemsStep-by-step explanation:
Let the number of the problems the team could solve before is x.
Then we have:
x + 40% = 421.4x = 42x = 42/1.4x = 30They were able to solve 30 problems before the new mathletes joined
Answer:
[tex]\tt{}x = 30 \\ [/tex]
Step-by-step explanation:
[tex]\tt{}x + 40\% = 42[/tex]
[tex]\tt{}1.4x = 42[/tex]
[tex]\tt{}x = \frac{42}{1.4} [/tex]
[tex]\tt{}x = 30[/tex]
[tex] \\ \\ \\ [/tex]
[tex] \huge \orange{\boxed{ \fcolorbox{red}{blue}{ \: CarryOnLearning \: }}}[/tex]
which statement is correct?
if these two shapes are similar what is the measure of the missing length r?
r = ____ kilometers
Answer:
The answer is r=20
Step-by-step explanation:
[tex] \frac{81}{45} = \frac{36}{r} \\ r = \frac{36 \times 45}{81} = 20[/tex]