plzzzzzzzzzzzzz help!!!
City A and City B had two different temperatures on a particular day. On that day, four times the temperature of City A was 8° C more than three times the temperature of City B. The temperature of City A minus twice the temperature of City B was −3° C. The following system of equations models this scenario:
4x = 8 + 3y
x − 2y = −3
What was the temperature of City A and City B on that day?
City A was 5° C, and City B was 4° C.
City A was 3° C, and City B was −1° C.
City A was 8° C, and City B was −3° C.
City A was 5° C, and City B was −5° C.
Answer:
City A was 5 and city B was 4
Step-by-step explanation:
Use substitution. Move 2y over so you have x=-3+2y
Plug that into 4x=8+3y
4(-3+2y)=8+3y
-12+8y=8+3y
subtract 3y from both sides
add 12 to both sides
5y=20
20 divided by 5
y=4
then youd plug it into the other equation
x-2(4)=-3
x-8=-3
x=5
therefore the answer is A
give hisoka brainliest
he loves kids, i love him too <3
PLZZZ help with this its pretty simple!
Answer:
It should be D, [tex]x^4 - 2x^3 + 7x^2 -12x - 4[/tex]
Step-by-step explanation:
Since, the equation given in the question is the factored form of the equation D. It can be solved using FOIL (First Outside Inside Last):
x * x³ = [tex]x^{4[/tex]
x * 7x = 7x²
x * 2 = 2x
-2 * x³ = -2x³
-2 * 7x = -14x
-2 * 2 = -4
This all would add up to ⇒ [tex]x^{4}[/tex] - 2x³ + 7x² + (-14x + 2x) -4
Simplifying the parenthesis further would give the option D as the answer.
Please help me I’ll give brainliest for this
What is the number of the parking space covered by the car?
(Im giving brainlisit)
Answer:
The number covered by the car is 87.
Step-by-step explanation:
All you have to do is turn the picture upside down, revealing a bunch of numbers in a row.
Answer:
87 but since its upside down L8
Step-by-step explanation:
The answer is L8. All of the numbers, when read upside down, are the number 86 - 91
So basically 87 but upside down it would be L8.
plzzzzzzzzzzzzz help
Answer: 4m²-28m+49
Step-by-step explanation:
(2m-7)² can be written as (2m-7)(2m-7).
You would have to multiply it out like this:
2m times 2m=4m² (2x2=4 and mxm=m²)
2m times -7=-14m (2x-7=-14 then put a m on it)
-7 times 2m=-14m
-7 times -7=49
The equation would then look like this:
4m²-14m-14m+49
Then you would have to collect like terms. Like terms are terms with the same variables and powers. It will then look like this:
4m²-28m+49
Hope this helps :)
Find the distance between (-3, 2) and (-7, 0). Round to the nearest tenth if needed.
A.6
B.9
C.20.3
D.4.5
helpppppppp plzzzzzzzzzzz i dont get it
Answer:
P=2(l+w)
sooo
Perimeter is 2/7+2. which is 2.2
Step-by-step explanation:
Im not completely sure, but hope this helps XP
The volume of a large aquarium is 90 ft cubed . It is 2 2/5 wide and 3 1/3 high . What is the length of the aquarium?
Answer:
11 2/8
Step-by-step explanation:
l×b×h=90
l×12/5×10/3=90
l×8=90
l=90/8
l=11 2/8
help confusing???? HELP ASAP
Answer:
expression: t³
Step-by-step explanation:
a number that can be presented by: t, is cubed which means it's raised to the power of 3.
Help my dum b brain cant handle this right now
Answer:
It would be -100 < -75
Step-by-step explanation:
NO LINKS - death valley is the hottest place in the united states. the highest temperature ever recorded there was 134F the lowest temperature recorded there was 15F write two inequalities that would describe the temperature, in degrees fahrenheit, in death valley at any time since temperatures have been recorded
Answer:
134F>15F and 15F< 134F
Step-by-step explanation:
if you flip the first one then you have the second
please help will mark brainliest (dont use links)
Answer:
A
Step-by-step explanation:
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A number cube is rolled. What is the probability that a number greater than 4 will be rolled?
1/6
2/3
1/3
5/6
Answer:
1/3
Step-by-step explanation:
A plumber has a 2-meter length of pipe. He needs to cut it into sections that are 10 centimeters long. How many sections will he be able to cut? (I will give brainliest if you answer first)
Answer:
20 - 10 cm sections can be cut from a pipe of original length 2 m
Step-by-step explanation:
Convert 2 meters to cm:
2 m 100 cm
------ * ---------------- = 200 cm
1 1 m
Next, divide this 200 cm total length by (10 cm/section) to determine the number of sections:
200 cm
--------------------- = 20 sections
10 cm/section
20 - 10 cm sections can be cut from a pipe of original length 2 m
biased means: when a sample does not accurately represent the population.
random sample means: a sample that is NOT BIASED.
!! IMAGE ATTACHED !!
Angle RST is a right angle. What is the measure of angle UST?
A. 27°
B. 36°
C. 63°
D. 81°
Answer:
as angle RST , 90 - 27
angle UST 63 degree
option c
pls Mark as brainliest
Translate the sentence into an inequality.
Twice c is at most 19.
Answer:
2c < 19
Step-by-step explanation:
Its not giving you an exact value of what c is so when you see "at most 19" you would use less than or equal to sign ( < ) but if instead said it "at least 19" you would use a greater than or equal to sign ( > ).
4x(28-10+2) Please help it says the answer is 92, but I keep getting 80. If 92 is the correct answer, please explain
Answer:
that's strange I got 80 too
Step-by-step explanation:
even the internet says its 80
Answer:
Step-by-step explanation:
Ok sooo I get 80 too I’m stuck
For each number, name its opposite.
a. -5
b. 28
C. -10.4
d. 0.875
e. O
f. -8,003
Find the area of the figure to the nearest tenth.
4 3/4: 1/6 = ???????
PLs help!!!!!!!!!!!!!
Answer:
hy don't download it
it might be virus
report it plz
A plumber has a 2-meter length of pipe. He needs to cut it into sections that are 10 centimeters long. How many sections will he be able to cut? (I will give brainliest if you answer first)
Answer:
20 pieces.
Step-by-step explanation:
2 meters is equivalent to 200 centimeters and if you divide 200 by 10 you get 20 pieces.
10 points for two questions please don’t write anything just to take my points
answer:
the picture is both the answer and the explanation
good luck :)
i hope this helps
**please let me know if this was wrong or not what you were looking for**
Please help! this is the last question :)
8 - 5b = -7 ?? whats the b
Answer:
b=3
Step-by-step explanation:
Isolate the b:
8-5b=-7Subtract 8, -5b=-15Divide by -5, b=3Check your answer:
8-5(3)=-78-15=-7-7=-7Please give explain for why is that sign
Answer:
because the sign is symmetrically inconnected to the ricoures of the trapezoid so the sign moves on its own
Coach Riley asked 35 students to count the number of push-ups they completed during class. The results are displayed in the box plot.
He then asked them to complete 4 more by the end of class.
Which of the following statements is TRUE about a new plot with the altered data?
A - The range will Increase by 4 units
B - The median will be greater than 46.
C - The plot will be translated 3 units to the right.
D - The interquartile range will be 4 times larger.
Answer:
I think A
Step-by-step explanation:
According to its packaging, the circular base of a table lamp has a circumference of 50.24 centimeters. What is the lamp base's radius?
Answer:
r=8cm
Step-by-step explanation:
r=C
2π=50.24
2·π≈7.99594cm
plz help! : Two math classes took the same quiz. The scores of 10 randomly selected students from each class are shown below. Sample Class A: 75, 80, 60, 90, 85, 80, 70, 90, 70, 65Sample Class B: 95, 90, 85, 90, 100, 75, 90, 85, 90, 85 Based on the medians of the scores for each class, what inference would you make about the quiz scores of all the students in Class A compared to all the students in Class B? Thanks :)
Answer: So, the grades went up 10
Step-by-step explanation:
