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
Wittaler [7]
3 years ago
5

X =-12

Mathematics
1 answer:
faust18 [17]3 years ago
4 0

Answer:

9 km/h   …. Current rate

12 km/h   ….. still water boat rate

Step-by-step explanation:

The speed of the boat supposed to be x km/h

The current rate is y km/h

(x + Y) * 10 = 210

(x – y) * 70 = 210

x + y = 21 ….. ①

x –y = 3 ….. ②

①’- ②’ … 2y = 18

Y = 9 km/h   …. Current rate

X = 9 + 3= 12 km/h   ….. still water boat rate

You might be interested in
HELP ME PLEASE [WILL GIVE BRAINLIEST TO BEST ANSWER WITH BEST EXPLAINATION]
Marysya12 [62]

Hi there!

\large\boxed{\text{33 in}^2}

Find the total area by breaking the figure into two rectangles, one trapezoid, and one triangle.

Rectangles:

A = l × w

A = 2.75 × 4 = 11 in²

Solve for the other rectangle's length by subtracting from the total:

12 - 2 - 3 - 4 = 3

A = 3 × 3 = 9 in²

Total rectangle area: 11 + 9 = 20 in²

Trapezoid:

A = 1/2(b1 + b2)h

A = 1/2(4.25 + 2.75)3 = 21/2 = 10.5 in²

Triangle:

A = 1/2(bh)

A = 1/2(2.5 · 2) = 2.5 in²

Add up all of the areas:

20 + 10.5 + 2.5 = 33 in²

3 0
3 years ago
Santo made 4 less than twice as many cupcakes as Lynn. Write an equation to represent the number of cupcakes that Santo made.
pickupchik [31]

Santo made 4 less than twice as many cupcakes as Lynn.


x * 2 - 4

5 0
3 years ago
Which is not true statement 10.345>10.340
alexandr402 [8]
Awnser is in the photo below

5 0
2 years ago
A player with 5 personals fouls can not stay in the game. Dylan has already earned two personals fouls how and still stay in the
anygoal [31]

Answer:

going foward

Step-by-step explanation:

6 0
3 years ago
R0-180(x, y) maps to the same point as 80,180(x, y).<br> True<br> False
mariarad [96]
The anser is false that what i think ):):(:(:(:(:(:
6 0
3 years ago
Other questions:
  • You want to help make snow cones at your school fair. Each paper cone has a radius of 4.5 centimeters. The height of one cone is
    6·1 answer
  • What is p-7/12&gt;3/10 please help
    12·1 answer
  • 6*12*2+9*12*1+8*1=?twelve
    6·1 answer
  • Kevin plans to sign up for p hours of training at culinary school the school offers two payments option A $8 per hour plus $200
    14·1 answer
  • Find the x- and y-intercepts of the line.<br> 4x – 2y = 3
    11·1 answer
  • What's the slope intercept equation for (3,3) and (5,1)​
    5·1 answer
  • In the right triangle shown, AC = BC and AB = 8V2.
    11·1 answer
  • Walter is helping to make cookies for a basketball tournament. He's made 15 cookies so far. His coach asked him to make at least
    11·1 answer
  • Find the tangents of the acute angles in the right triangle
    9·1 answer
  • 2 times what equals 2/3
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!