Answer
Step-by-step explanation:
what method matters?
Answer:
46
Step-by-step explanation:
46+ 32= 78
40+30=70
6+2=8
70+8+78
A coin contains 9 grams of nickel and 16 grams of Copper, for a total of 25 grams. What percentage of the metal is copper?
Answer:
The copper percentage = 64%
Step-by-step explanation:
Given
Nickle quantity = 9 grams of nickelCopper quantity = 16 grams of nickelTotal quantity = 25 gramsThe percentage of copper metal can be determined using the formula
Copper percentage = [Copper quantity / Total quantity] × 100
= [16 / 25] × 100
= 0.64 × 100
= 64%
Therefore, the copper percentage = 64%
Please help me with my delta math
Answer:
Use “ Math- way”
Step-by-step explanation:
It’s a web browser made for this stuff, you‘re welcome
A pack of baseball cards costs $7. Doug has $47. How many packs of baseball cards can he get?
The graph y = 1/2x^2 - x - 4 is shown below. State the coordinate of the zero(s):
Answer:
Zeros → (-2, 0) and (4, 0)
Step-by-step explanation:
Equation of the graph has been given as,
y = [tex]\frac{1}{2}x^{2} -x-4[/tex]
For zeros of the function,
y = 0
Therefore, [tex]\frac{1}{2}x^{2} -x-4=0[/tex]
By solving the equation algebraically,
x² - 2x - 8 = 0
x² - 4x + 2x - 8 = 0
x(x - 4) + 2(x - 4) = 0
(x + 2)(x - 4) = 0
x = -2, 4
Therefore, coordinates of the zeros will be (-2, 0) and (4, 0).
Let's confirm the zeros (x-intercepts) from the graph attached,
Coordinates of the x-intercepts are,
(-2, 0) and (4, 0)
what number has a value between -5 and -4
Answer:
-4.5
Step-by-step explanation:
Jordan found cloth for $7.50 per yard. How much would his total cost be if he needed 12 yards of cloth?
A homeowner uses GGG hours of natural gas heat and PPP hours of heat from a pellet stove to heat her house one month, with a total of 575757 therms of output. How many therms per hour does the pellet stove output
Answer:
0.0792therms/hour
Step-by-step explanation:
Given
Total output per month = 57 therm of output
Required
Total output of the pellet stove in one hour
Since 1month = 24×30 = 720hours
Hence:
57therms = 720hours
x therm = 1hour
Cross multiply
720×x = 57
x = 57/720
x = 0.0792 therms/hr
Hence the pellet stove use 0.0792therms/hour
What is 6% of 15? Use a fraction to solve
Answer:
0.9
Step-by-step explanation:
can't really Explain, its simple mathamatics 6% of 15 = 0.9
Jada made 8 cups of blueberry jam and divided the jam equally among 6 containers. How much jam went in each container?
Answer:
1.3 repeated is the answer
Answer:
Well if there is 8 cups and you want to divide it equally into 6 containers that would be 1.33 cups in each container
Kim rols three 6 sided dice.
The product of her numbers is 60
a) What numbers could she have rolled?
Answer:
2,5,6
Step-by-step explanation:
2 * 5 * 6 = 60
Kim rolls three 6 sided dice. The product of her numbers is 60. So, the numbers are 2, 5, and 6 and this can be determined by using arithmetic operations.
Given :
Kim rolls three 6 sided dice.The product of her numbers is 60.The following steps can be used to determine the number could Kim has rolled:
Step 1 - Let the three numbers be a,b, and c.
Step 2 - Given that the product of these numbers is 60.
[tex]a\times b \times c = 60[/tex]
Step 3 - So, the possible values of a, b, and c are:
a = 2
b = 5
c = 6
Step 4 - Check the product of a, b, and c if it is 60 then it is correct.
[tex]2\times 5\times 6 = 60[/tex]
For more information, refer to the link given below:
https://brainly.com/question/13101306
Nicole and all of her co-workers wear blue uniforms. Andrew works with Nicole. Olivia does not wear a blue uniform. Everyone who wears a blue uniform also wears a white shirt .
Which statement must be true?
A. Olivia wears a white shirt
B. Olivia does not work with Nicole
C. Some of Nicole's co-workers do not wear white shirts
D. Olivia is a co-worker of Nicole
E. Nicole does not wear a white shirt
The correct statement which satisfies the given condition will be that Olivia does not work with Nicole so option (B) will be correct.
What is the reasoning?the procedure of utilizing logical reasoning to analyze a condition to determine the best problem-solving approach for a particular issue, then using this approach to create and explain a resolution.
In another word, the reasoning is a tricky but interesting problem in mathematics that required relations of variables to solve.
Given that Olivia does not wear a blue uniform.
All co-workers wear blue uniform
It mean olivia doest not work with Nicola.
Hence Olivia does not work with Nicole will be the correct answer.
For more about reasoning,
https://brainly.com/question/2923977
#SPJ2
Indira is using a number line to add Negative 1 + (negative 3). She begins by showing –1 on the number line, as shown below.
A number line going from negative 5 to positive 5. The area between negative 1 and 0 is highlighted.
What is the sum of Negative 1 + (negative 3)?
–4
–3
2
3
Answer:
-4
Step-by-step explanation:
Help me i'll help you back
Answer:
A, C, B, respectively
Step-by-step explanation:
science(density and buoyancy)
A=
B=
Blank 1:
Blank2:
Answer:
a=3,b=1
Step-by-step explanation:
In a parallelogram opposite sides are equal/congruent.
Using this, we know that 3a-4=a+2 and b+1=2b
1st equation:
3a-4=a+2
-a -a
2a-4=2
+4 +4
2a=6
a=3
2nd equation:
b+1=2b
-b -b
b=1
a=3, b=1
Classify the shape as precisely as possible based on its markings.
A) Rhombus
B) Parallelogram
C) Quadrilateral
D) Rectangle
Answer:
C??...
Step-by-step explanation:
Answer: I put b. Parallelogram
Step-by-step explanation:
a pack of 10 pair of socks cost 16.80. what is the cost for one pair of socks
Answer: $1.68 per pair of socks
Step-by-step explanation:
16.80- 10 = 1.68
Someone please help me
Answer:
them some expensive pencils
what is 12+6x>99 help plz asaaap
Answer:
[tex] \frac{29}{2} [/tex]
The blue segment below is a radius of 0. What is the length of the diameter
of the circle?
Cheri uses her Tune-It-Up music card to make a $12 purchase of a few of her favorite songs. Which integer represents the effect of Cheri's purchase on the balance of her music card?
A) −$12
B) −$11
C) $0
D) $12
Answer:
Step-by-step explanation:
A, -12
if she had an x amount on her card,
after the buys the songs, she will have x-12 left
Rani bought 9 similar notebooks. She gave the cashier $10 and received change of $5.05. What was the cost of 1 notebook?
Answer: the anwer is 0.55
Step-by-step explanation: if he received 5.05$ change that wasnt the cost. to find real cost subtract 5.05 from ten then divide 4.95 by 9 which equels 0.55
pls give brainest award
s
is inversely proportional to
t
.
When
s
=
0.3
,
t
=
8
Work out
s
when
t
=
0.4
Answer:
s inversely proportional 1/t
s=0.3, t=8
s=k/t
0.3=k/8
k=0.3×8
k=2.4
find s when t=0.4
s=2.4/0.4
s=6.0 or 6
Help please asap will mark brainliest!!!
Answer:
it is 6
Step-by-step explanation:
its a reverse diamond
Which equation represents a line parallel to the line shown on the graph?
Step-by-step explanation:
b
What is the decimal equivalent of the fraction 2?
0 2.125
0 2.4
O 2.1
O 2.18
Answer:
2 .1 because its closes to two
In the diagram below, what is the approximate length of the minor arc ?
X
O A. 5.7 cm
40"
9 cm
O B. 7.1 cm
N
O C. 6.3 cm
D. 3.1 cm
Answer: c. 6.3
Step-by-step explanation:
Consider all seven-digit numbers that can be created from the digits 0-9 where the first and last digits must be even and no digit can repeat. Assume that numbers can start with 0. What is the probability of choosing a random number that starts with 4 from this group
Answer:
[tex]P_4= 0.2[/tex]
Step-by-step explanation:
From the question we are told that
Consider all seven-digit numbers
Created from the digits 0-9
Generally number of digits that starts with 6 is mathematically given as
The total amount of digits from 0-9(0,1,2,3,4,5,6,7,8,9 = 10
The total amount of even digits within 0-9 (0,2,4,6,8) = 5
The total amount of 3-digit numbers giving the first and last digits to be even = 5 * 10 * 5 = 250
The total 3-digit numbers giving the first digit is 4 and last digit is even = 1 * 10 * 5 = 50
Probability the number starts with 4
[tex]P_4 = \frac{50}{250}[/tex]
[tex]P_4= 0.2[/tex]
Pam walks 7/8 of a mile to school. Paul walks 1/2 of a mile to school. How much
farther does Pam walk than Paul?
Answer:
Pam walks 3/8 of a mile more than Paul
Step-by-step explanation:
1/2 = 4/8
7/8 - 4/8 = 3/8
Find the arc length of the semicircle. 8
Answer:
π×8² =
201.0619298297
arc length formular = π ×r²
Someone please help ASAP