Answer:
A x<7/12 hope this helps
There were 24 boys and 20 girls in a chess club last year. This year
the number of boys increased by 25% but the number of girls
decreased by 10%.
Find the overall percent change in membership of the club.
10
Answer:
35%
Step-by-step explanation:
If you take the amount of percent the girls decreased, and the amount the boys increased in percentages, you will have your answer when just adding them together. So the answer is 35% or as in 6 boys joined and 2 girls left. So that gives you a total of 8 joining or leaving the chess club or 35% difference.
A scuba diver is 20 feet below the surface of the water 14 seconds after he entered the water and 100 feet below the surface after 30 seconds. What is the scuba divers rate of change?
Answer:
1 foot = 0.7 secs
Step-by-step explanation:
14 seconds divided by 20 feet = 0.7 seconds per foot descended.
Hope this helps and good luck :)
Seafoodgumbo,a traditional MardiGras dish, uses 12 cups of chicken broth for each 1 1/ 4 cups of flour. Mr. Clark used 8 3 /4 cups of flour for his gumbo.How many cups of chicken broth did he use?
Answer:
84 cups of chicken broth
Step-by-step explanation:
Ratio of chicken broth to flour = 12 cups : 1 1/4 cups
Mr. Clark used 8 3 /4 cups of flour for his gumbo.
How many cups of chicken broth did he use?
Let x = cups of chicken broth he used
Ratio of chicken broth to flour = x cups : 8 3/4 cups
Equate the ratios
12 cups : 1 1/4 cups = x cups : 8 3/4 cups
12 ÷ 5/4 = x ÷ 35 / 4
12 * 4/5 = x * 4/35
48 / 5 = 4x / 35
Cross product
48 * 35 = 5 * 4x
1,680 = 20x
x = 1,680 / 20
= 84
x = 84 cups
(-1, -2)m= -1 WHATS the answer
Answer:
(-1,-2)*m-(-1)=0
Step-by-step explanation:
Can someone help me solve this for brainliest and a heart? Thank you!
Find two numbers that Multiply to -40 and add to 6
HELP ME ASAP PLEASE!!
Answer:
a=45 b=65
Step-by-step explanation:
You know that all the angle measures of a triangle add to 180. So the equation would be angle a + angle b + 70 = 180. Subsitute and simplify and you get 16x -2 + 70 = 180. Subtract 70 from 180 to get 16x -2=110 add 2 to get 16x =110. Divide each side by 16 to gte x=7. Subsitute x = 7 into the equations for angle a and angle b to get the answers above
A store is selling sweaters for 65% of the original price (or 35% off). If the original price of the sweater is $56.00, what is the sale price of the sweater?
Answer:
36.40
Step-by-step explanation:
Make a proportion : 35/100 = x/56. 35 times 56= 19.6. 56-19.6= 36.4
Hope this helps!
Answer:
The sales price is $36.40
plz answer!!! only if correct.
Answer:
90°Step-by-step explanation:
Sum of angles in triangle equals to 180°
∠R = 180° - (∠S + ∠T)∠R = 180° - (29° + 61°) = 180° - 90° = 90°what day in june will jessica be working at both locations
Answer:
Not enought information
Step-by-step explanation:
Maybe put a picture?
What is the value of
(
28
÷
7.2
)
⋅
(
−
36
)
?
Answer:
-140
Step-by-step explanation:
A and B can do a piece of work in 12 days; B and C can do it in 15 days while C and A can finish it in 20 days. In how many days will A, B and C finish it, working together? In how many days will each of them finish it working alone?
Answer:
It takes A 30 days to finish the work aloneIt takes B 20 days to finish the work aloneIt takes C 60 days to finish the work aloneWorking together, it takes them 10 days to finish the workStep-by-step explanation:
Given;
[tex]\frac{1}{A} + \frac{1}{B} =\frac{1}{12} \\\\\frac{1}{B} + \frac{1}{C} = \frac{1}{15}\\\\\frac{1}{A} + \frac{1}{C} = \frac{1}{20}\\\\[/tex]
From given equations above;
[tex]\frac{1}{A} +\frac{1}{B} = \frac{1}{12}\\\\But, \frac{1}{B} =\frac{1}{15} -\frac{1}{C}\\\\ \frac{1}{A} +\frac{1}{15} -\frac{1}{C}= \frac{1}{12}\\\\Also, \frac{1}{C} = \frac{1}{20} -\frac{1}{A} \\\\ \frac{1}{A} +\frac{1}{15} -(\frac{1}{20} -\frac{1}{A})= \frac{1}{12}\\\\ \frac{1}{A} +\frac{1}{15} -\frac{1}{20} +\frac{1}{A}= \frac{1}{12}\\\\ \frac{1}{A} +\frac{1}{A} = \frac{1}{12} +\frac{1}{20}-\frac{1}{15}\\\\\frac{2}{A} = \frac{300+ 180-240}{3600} \\\\\frac{2}{A} =\frac{240}{3600}\\\\[/tex]
[tex]\frac{2}{A} = \frac{1}{15} \\\\A = 30 \ days[/tex]
solve for B;
[tex]\frac{1}{A} + \frac{1}{B} = \frac{1}{12}\\\\ \frac{1}{B} = \frac{1}{12} - \frac{1}{A} \\\\ \frac{1}{B} = \frac{1}{12} - \frac{1}{30}\\\\ \frac{1}{B} =\frac{5-2}{60} \\\\ \frac{1}{B} =\frac{3}{60}\\\\B = 20 \ days[/tex]
Solve for C;
[tex]\frac{1}{C} =\frac{1}{20} -\frac{1}{A}\\\\ \frac{1}{C} = \frac{1}{20} -\frac{1}{30}\\\\ \frac{1}{C} =\frac{3-2}{60} \\\\ \frac{1}{C} =\frac{1}{60}\\\\C = 60 \ days[/tex]
When they work together;
[tex]\frac{1}{A} +\frac{1}{B} +\frac{1}{C} =\frac{1}{y} \\\\\frac{1}{30} +\frac{1}{20} +\frac{1}{60} = \frac{1}{y}\\\\\frac{2+ 3+ 1}{60} =\frac{1}{y}\\\\\frac{6}{60} =\frac{1}{y}\\\\y = 10\ days[/tex]
(5x +40x +
+ 40x+31) = (x+7)
Answer:
Step-by-step explanation:
5x + 40x + 40x + 31 = x + 7
85x + 31 = x + 7
Bringing like terms on one side
85x - x = 7 - 31
84x = - 24
x = - 24/84 = 2/7
logan enjoys taking his dog to the park. he walks doen hickory st. turns into maple ave. to meet his friend, brett, and then continues on maple ave. to the park. what is the approximate distance from bretts house to the park
Answer:
ummm there is no chart or multiple choice so imma go off a limb here and say 1/2 mile
hope this helps
sorry if its wrong i had no chart
Step-by-step explanation:
Answer:
2 miles
Step-by-step explanation:
he walks to to maple avenue to meet his friend is a mile,so to continue his walk on maple avenue to the park is another mile.
−(5x−0.4)=−7(−0.4−x) need to be exact or rounded to the nearest hundredth.
Answer:
-0.2
Step-by-step explanation:
it's that exact answer , I did not rounded
Evaluate
15/r when r=5
Answer:
3
Step-by-step explanation:
[tex]\frac{15}{r} =\frac{15}{5}=3[/tex]
PLEASE ANSWER ASAP WITHEXPLANATION!! YOU WILL BE REPORTED AND BANNEDIF YOU ANDWER FOR POINTS!!
The point slope form of a line that has a slope of -2 and passes through point (5,-2) is shown below.
What is the equation in slope-intercept form?
A. y = -2x + 12
B. y= -2x +8
C. y = -2x -7
D. y = -2x -3
Tara has ridden her bike .5 miles and
rides 10 miles per hour. Felipe has
ridden his bike .25 miles and rides 15
miles per hour. For what number of
hours will-Tara have ridden less miles
than Felipe?
Answer:
0.5 hours
Step-by-step explanation:
Given that Tara has covered 0.50 miles and rides with a speed of 10 miles/hour. Felipe has covered bike 0.25 miles and rides with a speed of 15 miles/hour.
Tara has covered more distance while the speed of Felipe is more than the speed of Tara.
Assuming that in time t hour, Felipe reaches Tara, then Tara left behind as Felipe has faster speed.
So, after t hour, Felipe will be ahead of Tara and Tara will cover lesser miles than Felipe .
As distance = speed x time, so
So, the distance covered by Tara in [tex]t[/tex] hour = 10t miles and she already has covered 0.5 miles, so total distance covered by Tara [tex]= 0.5+10t[/tex] miles.
Similarly, the distance covered by Felipe in [tex]t[/tex] hour = 15t miles and he already has covered 0.25 miles, so the total distance covered by Tara [tex]= 0.25+15t[/tex] miles.
Therefore, at the time then Felipe reached Tara, both have covered the same distance, i.e
[tex]0.25+15t=0.5+10t \\\\\Rightarrow 15t-10t=0.5-0.25 \\\\\Rightarrow 5t=0.25 \\\\[/tex]
[tex]\Rightarrow t= 0.25/5=0.5[/tex] hour
Hence, after 0.5 hours Tara will cover lesser miles than Felipe .
Answer:
0.5 hours
Step-by-step explanation:
Randy wants to attach a 23 foot string of lights to the top of the 13 foot mast of his sail boat. How far from the base of the mast should he attach the end of the light string?
Answer:
distance from the base where string is attached = 18.97 feet
Step-by-step explanation:
The diagram attached to this solution gives a right-angled triangle formed by attaching the string to the top of the mast. the distance from the base is calculated as follows:
(hypotenuse)² = (opposite)² + (adjacent)²
23² = 13² + d²
529 = 169 + d²
d² = 529 - 169
d² = 360
d = √(360)
d = 18.97 feet
find the median for each set of data 4,12,7,6,10,5,11,8
Answer:
7.5
Step-by-step explanation:
The median is the middle data in a set. To find the median first order the set for least to greatest. In this case, 4,5,6,7,8,10,11,12. Then find the number in the middle, however, because there is an odd number of data you must take the mean of the two middle numbers. The two numbers in the middle are 7 and 8, so to find the mean of these numbers add them then divide by the number of terms, aka 2. (7+8)/2=7.5, therefore the median must be 7.5.
SOMEONE HELP PLZ!!!!!!
Answer:b
Step-by-step explanation:
which one is greater 6.65 or 6.650
Answer:
neither they are both equal
Step-by-step explanation:
Answer: there equal/ the same.
Step-by-step explanation:
Which table of values does not represent a function
Answer:
if an input produces more than one output, the table does not represent a function. In this case, table D is not a function. the x value 0 has three different output values, -1, 4, and 6; the input 2 also has three different output values.
The moon forms a right triangle with the Earth and the Sun during one of its phases, as shown below: A right angle triangle is shown with the Earth at the right angle. The acute angle between the line joining the Earth and the S The moon is, on average 238,900 miles from the Earth and the Sun is roughly 93,000,000 miles from the Earth. What is the measure of angle x? Round to the nearest hundredth. Note. This is a very small angle.
Answer:
0.15
Step-by-step explanation:
Using trigonometry :
Tanθ = opposite / Adjacent
Opposite = distance between earth and sun = 238,900
Adjacent = distance between earth and moon = 93,000,000
Tanx = 238900 / 93000000
Tanx = 0.0025688
x = tan^-1 (0.0025688)
= 0.1471820°
Answer:
0.15
Step-by-step explanation:
Took the test.
Select the correct answer.
A. 0.25
B. 0.33
C. 0.5
D. 0.75
Naomi measured the floor of her bedroom, which is rectangular. It is 8 feet wide and 10 feet from one corner to the opposite corner. How long is the bedroom unit
Answer:
18 feet
Step-by-step explanation:
How many solutions does the system have?
y = 5 + 6x
y = 6x + 5
Choose 1 answer:
A Exactly one solution
B No solutions
C Infinitely many solutions
yo can you help me with this
Ahoy there, matey! Our pirate ship had 5/6 of a treasure chest full of gold. Then we plundered an enemy ship and took their 3/8 of a treasure chest full of gold. How many treasure chests full of gold do we have now?
Answer:
1 5/24
Step-by-step explanation:
5/6+3/8
find common denominator: 24
5/6=20/24 3/8=9/24
add:
20/24+9/24=29/24
simplify:
29/24=1 5/24
hopefully this helps :)
Answer:
[tex]\frac{11}{24}[/tex]
Step-by-step explanation:
What is the slope of 7,-2 and -3,3
Answer:
-1/2
Step-by-step explanation:
y2-y1/x2-x1
3-(-2)/ -3-7
5/-10
= -1/2