Do the ratios
17
8
and
5
4
form a proportion?
Answer:
No
Step-by-step explanation:
17/8 = 2.125
5/4 = 1.25 meaning they do not form a proprtion, i hope i helped you!
Mr Lim put some red pens and blue pens into a box . The ratio of the number of red pens to the number of blue pens was 3: 4 .He pet another 20 red pens into the box and the ratio of the number of red pens to the number of blue pens became 2:1 (a) How many red pens were there in the end? (b) How many blue pens were there?
Answer:
a) There were 32 red pens and b) 16 blue pens.
Step-by-step explanation:
3:4
for 3:4 to be 2:1 we should add 5 in order for it to be 8:4 (2:1)
20 divided by 5 is equal to 4
8:4
8 times 4 is equal to 32
4 times 4 is equal to 16
The number of red pens that were there, in the end, is 32 pens while the number of blue pens that were there, in the end, is 16 pens
If the ratio of the number of red pens to the number of blue pens was 3: 4,
If 20 red pens are added into the box and the ratio of the number of red pens to the number of blue pens became 2:1, this means that the 5 is added to the original ratio to have:
(5+3): 4 = 8:4
The number of red pens in the end = [tex]8 \times \frac{20}{5}=8\times 4 = 32[/tex]
The number of red pens in the end = [tex]4 \times \frac{20}{5}=4\times 4 = 16[/tex]
Hence the number of red pens that were there, in the end, is 32 pens while the number of blue pens that were there, in the end, is 16 pens
Learn more here:
https://brainly.com/question/3796978
How many lines of symmetry does the figure have?
A. 0
B. 1
C. 2
Answer:
The answer is A, so zero.
what’s the equation for getting the circumference of a circle
Answer:
Its 2πr^2
Step-by-step explanation:
[tex]2\pi {r}^{2} [/tex]
Tallulah biked 84 miles at a rate of 10.5 miles per hour. Determine how many hours she biked. Use d=rt
Answer:
B. 8 hours
Step-by-step explanation:
T=d/r
84/10.5 = 8 hours
if <TIS = 48°, Complementary TIS = ?
Step-by-step explanation:
complementary angle = 90 - angle
= 90- 48= 42 °
hope this will be helpful to you .
plz mark my answer as brainlist if you find it useful.
7x-7=14
Plz show how u got the answer
Answer:
7x-7=14
7x=14+7
7x=21
x=21/7
x=3
Step-by-step explanation:
Hope it helps you
Find cos x and cos y! Please help me out! You don’t need to answer all just what you can :)
Answer:
7. cos(X) = 3/5 = 0.6
cos(Y) = 4/5 = 0.8
8. cos(X) = 15/17 ≈ 0.8824
cos(Y) = 8/17 ≈ 0.4706
9. cos(X) = 1/2 = 0.5
cos(Y) = (√3)/2 ≈ 0.8660
Step-by-step explanation:
The trigonometric ratio for cosine is given as follows;
[tex]Cos(\theta) = \dfrac{Adjacent\, side \, to\, angle}{Hypothenus\, side \, length \ of\, the \ triangle}[/tex]
7. The adjacent leg length to ∠X = 27
The length of the hypotenuse side of the triangle = 45
∴ cos(X) = 27/45 = 3/5 = 0.6
Cos(X) = 3/5 = 0.6
The adjacent leg length to ∠Y = 36
∴ cos(Y) = 36/45 = 4/5 = 0.8
cos(Y) = 4/5 = 0.8
8. The adjacent leg length to ∠X = 15
The length of the hypotenuse side of the triangle = 17
∴ cos(X) = 15/17 ≈ 0.8824
The adjacent leg length to ∠Y = 8
∴ cos(Y) = 8/17 ≈ 0.4706
9. The adjacent leg length to ∠X = 13
The length of the hypotenuse side of the triangle = 26
∴ cos(X) = 13/26 = 1/2 = 0.5
Cos(X) = 1/2 = 0.5
The adjacent leg length to ∠Y = 13·√3
∴ cos(Y) = 13·√3/26 = (√3)/2 ≈ 0.8660
cos(Y) = (√3)/2 ≈ 0.8660.
Mark took his family to the movies and spent a total of 78$ on tickets he also bought a soda for each family member each sodas cost 4.25 if mark spent a total of 102,50 on sodas and tickets. How much sodas did he buy
Answer: He bought about 6 sodas.
Step-by-step explanation:
Given: Tota cost of tickets = $ 78
Cost of each soda = $4.25
Total cost of sodas and tickets = 102.50
Let x = Number of sodas purchased
Then
[tex]78+4.25x=102.50\\\\\Rightarrow\ 4.25x=102.50-78\\\\\Rightarrow\ 4.25x=24.5\\\\\Rightarrow\ x= \dfrac{24.5}{4.25}\\\\\Rightarrow\ x\approx6[/tex]
Hence, he bought about 6 sodas.
7x + 4 = 25, then x is equal to
a) 29/ 7 b) 100/7 c) 2 d/ 3
Answer:
d) 3
Step-by-step explanation:
7x+4=25
7x=21
X=3
Answer: D. 3
Step-by-step explanation:
Given
7x+4=25
Subtract 4 on both sides
7x+4-4=25-4
7x=21
Divide 7 on both sides
7x/7=21/7
x=3
Hope this helps!! :)
Please let me know if you have any questions
In the diagram, which pair of angles are alternate interior angles?
O <2 and <5
O <1 and <7
O <5 and <3
O <7 and <4
The alternate interior angles shown are <3 and <5, as well as <2 and <8.
I hope this helped!
Answer:
ur answer would be
<2 and <5
step-by-step explanation:
hope this helps
Find the product -10 x (-12)
x²-6x-72
Step-by-step explanation:
(x+6)(x-12)
(x×x)-(x×12)+(6×x)-(6×12)
x²-12x+6x-72
x²-6x-72
Answer:
120
Step-by-step explanation:
The rules of multiplication state, that when there are two negatives being multiplied by each other, they become positive. You will multiply -10 x -12, and since there are two negatives, they cancel out.
Now it becomes simple multiplication. Simply multiply 10 x 12, without the negatives since they have been canceled out.
-10 x (-12) = 120
The total rainfall for the year is expected to be 57.8 inches. If it has already rained 32.95 inches, how many more inches of rain are expected?
Answer:
Step-by-step explanation:
57.8 - 32.95 = 24.85
24.85 inches
Don't forget units! :)
Answer:
24.85in
Step-by-step explanation:
This is a very simple subtraction:
57.80-32.95=24.85in
i hope this helps
pls give thx and brainliest
In a lab experiment, 130 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 8 hours. How many bacteria would there be after 24 hours, to the nearest whole number?
Answer:
1040
Step-by-step explanation:
8 hours = 260
16 hours = 520
24 hours = 1040
What is the area of the composite figure?
7 yds;
12 yds.
18 yds.
I need help asap plz! This is due today.
"If you want addition to be done before multiplication, what do you need to add to the problem?"
Answer:
You need to add Parentheses..
As you know PEMDAS states that multiplication will always go first when compared to addition unless you put Parentheses which overrules Multiplication
Step-by-step explanation:
2*6+4
you do multiplication first and get the answer 16 after addition
But if you do this: 2*(6+4) you do the addition before the multiplication because of the Parentheses and get 20. One small change can make the answer a whole lot more different
5/7x - 14 = -22. Find x.
Answer:
x = -56/5, -11 1/5, or -11.2
Step-by-step explanation:
5/7x - 14 = -22
5x -98 = -154
5x = -154 + 98
5x = -56
x = -56/5, -11 1/5, or -11.2
Answer:
x= -11.2
Step-by-step explanation:
5/7x-14=-22
+14 +14 Add 14 on both sides
5/7x = -8
(7/5)*5/7x = -8*(7/5) Multiply by the reciprocal on both sides to leave x alone
x= -11.2 Answer
1 Which expression is equivalent to 4 − (−7)?
A 7 + 4
B 4 − 7
C −7 − 4
D −4 + 7
Answer:
The answer is A
Step-by-step explanation:
4−(−7)
=4−(−7)
=4+7
=11
2 kg in the ratio 3:5
Answer:
3u--> 750g
5u-->1250g
Step-by-step explanation:
2kg = 2000g
3+5=8
8u --> 2000g
1u--> 250g
3u--> 750g
5u-->1250g
What do you notice about the graph when it passess through a root of even multiplicity?
what is the domain of the relation
Answer:d I believe
Step-by-step explanation:
I got my ASVAB score back today... And I got a 21%... someone loves kill me now. But I didn't really have time to study for it, because my teachers offered for me to take it early and I did and now I have failed D:
Answer:
dang thats tough..
Step-by-step explanation:
idrk what an asvab is but it sounds horrible im
sorry that happened :(
Given the equation 5x = 30, what integer (number) must x be in order for this equation to be true?
Answer:
The answer is 6
Answer:
the answer is 6
Step-by-step explanation:
5x6 = 30. x =6
Smiley's Cookies makes the best chocolate chip cookies in town! Yesterday, the store sold 7 large cookies for every 5 small cookies. If Smiley's Cookies sold 30 more large cookies than small cookies yesterday, how many small cookies did they sell?
Answer: The number of small cookies sold = 75
Step-by-step explanation:
GIven: Yesterday, the store sold 7 large cookies for every 5 small cookies.
Let 7x be the number of cookies and 5x be the number of small cookies. (i)
They sold 30 more large cookies than small cookies.
i.e. [tex]7x-5x=30[/tex] (Using (i))
[tex]\Rightarrow\ 2x=30\\\\\Rightarrow\ x=\dfrac{30}{2}\\\\\Rightarrow\ x=15[/tex]
Thus, the number of small cookies sold = 5 (15)=75 (Using (i))
Hence, the number of small cookies sold = 75
Please helpppppppp xx
Answer:
1 : [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Given the ratio
9 : 6 ← divide both parts of the ratio by 9
= [tex]\frac{9}{9}[/tex] : [tex]\frac{6}{9}[/tex] ← simplify
= 1 : [tex]\frac{2}{3}[/tex]
HELP! Jerry is buying hot dogs and hamburgers for his barbeque. Hot dogs cost $6 per pack, while hamburgers cost $8 per pack with taxes included. Jerry can spend a maximum of $50 on the food.
Using x and y for the number of packs of hot dogs and hamburgers, respectively, what is an inequality that represents this situation?
Answer:
3 packs of burgers and 4 packs of hot dogs
Step-by-step explanation:
if this is wrong im sorry what i did was divide 50 by 2 and got to the most i could
how to solve this one
Find the measure of the missing angle.
70
C b
Answer:
attachment?
Step-by-step explanation:
Solve the equation. Explain your steps.
Answer:
x=-36
Step-by-step explanation:
x+1=-35 (divide both sides by 5)
x=-36 (subtract 1 from each side)
If using the method of completing the square to solve the quadratic equation
22 + 15x – 11 = 0, which number would have to be added to "complete the
square"?
Answer:
Step-by-step explanation:
Let's solve your equation step-by-step.
22+15x−11=0
Step 1: Simplify both sides of the equation.
22+15x−11=0
22+15x+−11=0
(15x)+(22+−11)=0(Combine Like Terms)
15x+11=0
15x+11=0
Step 2: Subtract 11 from both sides.
15x+11−11=0−11
15x=−11
Step 3: Divide both sides by 15.
15x
15
=
−11
15
x=
−11
15
Answer:
x=
−11
15