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aksik [14]
3 years ago
13

Find the sum for these angles

Mathematics
1 answer:
shutvik [7]3 years ago
7 0
For the first answer is 52 and the second answer is 85 the third answer is 65 I hope it helped
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There are 17 students in a class. On the day the test was given, John was absent. The other 16 students took the test, and their
e-lub [12.9K]

Answer:

John got 94 marks

Step-by-step explanation:

average = total numbers/ no. of students

77= x/16--------------1

78=x+y/17------------2

From 1 :      x= 77*16= 1232--------------3

From 2:       x+y= 78*17=  1326---------4

subtracting 3 from 4

y= 1326-1232= 94

4 0
3 years ago
Read 2 more answers
whats the answer of the problem peter is 3 years older than his sister Anna. if times their combined age is 85 . determine Annas
jeyben [28]

Answer:

Anna is 41 years old.

Step-by-step explanation:

Easiest way to do this is by building a equation,

Lest say Anna's age is x.

Then as Peter is 3 years older than Anna Peter's age should be x+3.

Then the combined ages of the two people is given as 85. So we can write an equation as,

x+(x+3)=85

x+x+3=85

2x+3=85

2x+3-3=85-3 (deducting 3 from both sides of the equation)

2x=82

x=41

As we originally took Anna;s age as x

We can say Anna is 41 years old.

4 0
3 years ago
A 5-pack of toy cars costs $4.95. What is the unit price?
Anastaziya [24]

Answer:

0.99

4.95/5=0.99

Step-by-step explanation:

7 0
3 years ago
(9 x 10 ^10) - ( 4x10^10)
Marianna [84]

Answer:

5 * 10^10

Step-by-step explanation:

that's it bro. learn how to do it. then you won't need brainly anymore foo'.

4 0
3 years ago
Based only on the information given in the diagram, which congruence theorems or postulates could be given as reasons why DEF=JK
NISA [10]

Answer:

A) AAS; B) LA; C) ASA

Step-by-step explanation:

AAS is the Angle-Angle-Side congruence statement.  It says that if two angles and a non-included side of one triangle are congruent to the corresponding two angles and non-included side of a second triangle, then the triangles are congruent.  In these triangles, ∠E≅∠K, ∠F≅∠L, and DE≅JK.  These are two angles and a non-included side; this is AAS.

LA is the leg-acute theorem.  It states that if a leg and acute angle of one triangle is congruent to the corresponding leg and acute angle of another triangle, then the triangles are congruent.

The leg we have congruent from each triangle is DE and JK.  We also have ∠E≅∠K and ∠F≅∠L, both pairs of which are acute.  This is the LA theorem.

ASA is the Angle-Side-Angle congruence statement.  It says that if two angles and an included side of one triangle are congruent to the corresponding two angles and included side of another triangle, then the triangles are congruent.  

We have that ∠D≅∠J, DE≅JK and ∠E≅∠K.  This gives us two angles and an included side, or ASA.

7 0
3 years ago
Read 2 more answers
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