1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BaLLatris [955]
3 years ago
10

Can you guys help me? :-(

Mathematics
2 answers:
Yuliya22 [10]3 years ago
8 0

Answer:

2/5 + 5/10 = 9/10

Step-by-step explanation:

Turn 2/5 into 4/10 to make the two fractions' denominators the same by multiplying 2 × 2 =4 and 5 × 2 = 10. Then add 4/10 + 5/10 to get 9/10.

VMariaS [17]3 years ago
5 0

Answer:

\frac{9}{10}

Step-by-step explanation:

Find the LCD because like last time, you cannot add or subtract fractions with different denominators.

LCD = 10

Since the second fractions stayed at the same denominator, you will only have to multiply the first fraction.

\frac{2 * 2}{5 * 2}

\frac{4}{10}

\frac{4 + 5}{10}

= \frac{9}{10}

You might be interested in
If Sue runs one mile every 7 minutes, and this relationship is graphed, which ordered pair would not be on the graph?
Free_Kalibri [48]
I don’t know this one
4 0
3 years ago
A wire 22 cm long is cut into two pieces. The longer piece is 4 cm longer than the shorter piece. Find the length of the shorter
guajiro [1.7K]
Answer:

Explanation: L = longer piece S = shorter piece

L + S = 22

L = 4 + S

S + S + 4 = 22
-4 -4
S + S = 18

S = 18/2 = 9 cm

L = 4 + S —> 4 + 9 = 13 cm

To confirm:

13 cm + 9 cm = 22 cm

Therefore, the shorter piece is 9 cm.
3 0
2 years ago
I need the function for the volume of the box for number 1
rjkz [21]

Answer:

Step-by-step explanation:

The volume of a rectanguiar shape like this one is V = L * W * H, where the letters represent Length, Width and Height.  Here L is the longest dimension and is 28 - 2x; W is the width and is 22-2x; and finally, x is the height.  Thus, the volume of this box must be

V(x) = (28 - 2x)*(22 - 2x)*x

and we want to maximize V(x).  

One way of doing that is to graph V(x) and look for any local maximum of the graph.  We'd want to determine the value of x for which V(x) is a maximum.

Another way, for those who know some calculus, is to use the first and second derivatives to identify the value of  x at which V is at a maximum.

I have provided the function that you requested.  If you'd like for us to go all the way to a solution, please repost your question.

3 0
2 years ago
The distances male long jumpers for State College jump are approximately normal with a mean of 263 inches and a standard deviati
Effectus [21]

Answer:

His jump was of 272.45 inches

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 263, \sigma = 14

75th percentile

X when Z has a pvalue of 0.75. So X when Z = 0.675

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 263}{14}

X - 263 = 14*0.675

X = 272.45

His jump was of 272.45 inches

7 0
3 years ago
Read 2 more answers
Tom is 13 years old. Brad is 10 yrs old. which number sentence can be used to find how much older Tom is than Brad ​
zysi [14]

Answer:

is there a multipe choice?

5 0
3 years ago
Read 2 more answers
Other questions:
  • How can you tell when a pattern shows counting by tens ?
    5·2 answers
  • Plot the inequality on the number line. <br><br><br> x ≤ 1 or x&gt;8
    9·1 answer
  • 5. 3x + 5y + 5z =1<br> x - 2y = 5<br> 2x + 4y = 11
    12·1 answer
  • Please Answer the question and show your work, Thx
    10·2 answers
  • Find the measure of the indicated angle to the nearest degree
    7·1 answer
  • Write the slope-intercept form of the equation of each line. identify the slopes y-intercept.
    9·1 answer
  • Assume you have applied for two scholarships, a Merit scholarship (M) and an Athletic scholarship (A). The probability that you
    7·1 answer
  • What is 3х? ?????????????????????????????
    15·1 answer
  • Given that the function g is defined by the rule g(x)=3-2x,determine the following
    14·1 answer
  • a vendor is thinking about changing the number of sweatshirts he brings to tan event. to make sure he doesn't run out, he plans
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!