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Lena [83]
3 years ago
7

Which value of x makes the following equation true?

Mathematics
2 answers:
statuscvo [17]3 years ago
5 0

Answer:

the answer is c hope this helps

Step-by-step explanation:

-7-3=-10

-10x2=-20

-20+41=21

-3(-7)=21

fenix001 [56]3 years ago
3 0

Answer

in order to get the most correct answer you must plug the answer to get x

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Help me please. <br>Help me please. <br>Help me please.
Gnesinka [82]
A)
To be similar triangles have to have equal angles
triangle ZDB' 
1)angle Z=90 degrees
triangle B'CQ
1) angle C 90 degrees

angle A'B'Q=90
DB'Z+A'B'Q+CB'Q=180, straight angle
DB'Z+90+CB'Q=180
DB'Z+CB'Q=90

triangle ZDB'
DZB'+DB'Z=180-90=90

DB'Z+CB'Q=90
DZB'+DB'Z=90
DB'Z+CB'Q=DZB'+DB'Z
2)CB'Q=DZB' (these angles from two triangles ZDB' and B'CQ )
3)so,angles DB'Z and B'QC are going to be equal because of sum of three angles in triangles =180 degrees and 2 angles already equal.
so this triangles are similar by tree angles
b)
B'C:B'D=3:4
B'D:DZ=3:2
CQ-?
DC=AB=21
DC=B'C+B'D (3+4= 7 parts)
21/7=3
B'C=3*3=9
B'D=3*4=12
B'D:DZ=3:2
12:DZ=3:2
DZ=12*2/3=8
B'D:DZ=CQ:B'C
3:2=CQ:9
CQ=3*9/2=27/2

c)
BC=BQ+QC=B'Q+QC
BQ' can be found by pythagorean theorem



3 0
3 years ago
E
Evgesh-ka [11]

Answer:

He bought 20 shirts

Step-by-step explanation:

shirts -- x

pants -- 3/4 of x

Therefore,

He bought --- 28(3/4 of x) pants and 40(x) shirts.

So, 28(3/4 of x) + 40(x) = 1220

=> 21x + 40x = 1220

=> 61x = 1220

=> x = 20

He bought 20 shirts and 15 pants.

Thenks and meak me brainliest :))

3 0
2 years ago
Ratio of dolls to teddy bears is 6:5. If the has 240 dolls how many teddy bears are there?
scZoUnD [109]
Answer:
There will be 200 teddy bears.

Explanation:
Please check the picture attached!

I hope this helps!

8 0
3 years ago
Read 2 more answers
There are 16 girls in a school club. The number of girls is four more than twice the number of boys. Find the number of boys
lisabon 2012 [21]
16-4=12/2=6 so there’s like 6 bois
4 0
3 years ago
Please help with the problem below
Andrej [43]

Answer:

ow that so hard

Step-by-step explanation:

wait let me see the answer i well search it

5 0
3 years ago
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