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
Ymorist [56]
3 years ago
7

Find measure of angle BDC

Mathematics
1 answer:
Liula [17]3 years ago
4 0
The 2 angles are complemantary or form right angles so -3x+20-2x+55=90=-5x+75=90=-5x=15
 sox=3. Plugging that into BDC we get 11
You might be interested in
37= -3+5(x + 6) slove for x
lions [1.4K]
Step 1: Simplify both sides of the equation.
37
=
−
3
+
5
(
x
+
6
)
37
=
−
3
+
(
5
)
(
x
)
+
(
5
)
(
6
)
(Distribute)
37
=
−
3
+
5
x
+
30
37
=
(
5
x
)
+
(
−
3
+
30
)
(Combine Like Terms)
37
=
5
x
+
27
37
=
5
x
+
27
Step 2: Flip the equation.
5
x
+
27
=
37
Step 3: Subtract 27 from both sides.
5
x
+
27
−
27
=
37
−
27
5
x
=
10
Step 4: Divide both sides by 5.
5
x
5
=
10
5
x
=
2
8 0
3 years ago
Lucy took three tests. If her median score was 86, her mean score was 87, and the range was 13, what were her three test scores?
sveticcg [70]
      x+82+y
______________  =87
         3
y-x=17
87,98, and 82.
3 0
3 years ago
The sum of two integers is 61 and their difference is 1. Find the integers.
musickatia [10]

We can find this integer using a system of equations.  The first thing we look at is the first sentence.

Let's call X The first integer,

Let's call Y the second integer.


So, X+Y=61 and X-Y= 1


Using Substituion on the second equation, we get

X=Y+1

(Now we plug in Y+1 into the second equation for X)

So,

(Y+1)+Y=61

2Y=60

Y=30

So, one of the integers is 30.

Now to find the second, we go back to

X=Y+1

X=30+1

X=31.


So, the integers are 31 and 30.


Hope this helps!

7 0
3 years ago
A company produces packets of soap powder labeled "Giant Size 32 Ounces." The actual weight of soap powder in such a box has a N
Nataliya [291]

Answer:

C. 34.15 oz

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= 33, \sigma = 0.7

How heavy does a box have to be for it to be labeled overweight?

Top 5%, so X when Z has a pvalue of 1-0.05 = 0.95.

So X when Z = 1.645.

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

1.645 = \frac{X - 33}{0.7}

X - 33 = 0.7*1.645

X = 34.15

So the correct answer is:

C. 34.15 oz

4 0
3 years ago
Jimmy gets a discount of 35% for a pair of sneakers with an original price of $70. He also gets a discount of 25% on a shirt wit
Tanya [424]
First find the total without using the dicounts. then do 70×.35 which is 35% as a decimal. your answer is the dicounts but that is how much you are taking off. .35×70= 24.5 then you would do 70-24.5=45.5 then do the same for the other amount. add these two amounts together. ( 30×.25=7.5 30-7.5= 22.5) 45.5+22.5= 68 then do your first answer - 68 and that is how much is saved
8 0
3 years ago
Read 2 more answers
Other questions:
  • What percent is equivalent to 9/4 ?<br> A) .225%<br> B) 22.2%<br> C) 44.4%<br> D) 225%
    7·1 answer
  • the constant of proportionality is always the point_______, where k is the constant of proportionality. Additionally, you can fi
    13·1 answer
  • in Mr. Diaz's class, 20% of the students receive a grade A on there report cards. there are 25 students in mr. diazs class. how
    9·2 answers
  • Cars average speed if it travels 145m in 2.5h
    11·2 answers
  • 7 eights into decimal and fraction​
    10·1 answer
  • Students in Mr. Eaton’s class must choose a person from a list of 30 people and then write an essay about that person. The list
    7·1 answer
  • Find the value of x 117,145,133,140,119,125
    11·1 answer
  • The mean weight of 15 members of a company is 58kg. One more member whose weight is 74kg joins the company.Find the new mean wei
    13·1 answer
  • The committee is planning a party and 150 guests are expected. Each package of plastic spoons contains 24 spoons.
    11·2 answers
  • PLEASE HELP!!!!<br><br> Question below.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!